Какой ответ объясните. Children chose the attractions depending their age. A. on B. in C. of

On. Потому что есть конструкция: depend on

I would like to tell you about Polina Gagarina (смотри ниже) and Lionel Messi, who is one of the best footballers  of nowadays and one of the best football players of all times! He was the best player in the world in the years 2009-2012. (на выбор)))
Lionel Messi was born in June 1987 in the city of Rosario, in Argentina. He has two brothers and a sister. Two of his cousins are also footballers. His father's family comes from Italy, but the ancestors moved to Argentina in 1883.
Messi stared playing football when he was 5 years old. His father, a factory worker, was his first coach. Messi's grandmother wanted him to become a footballer and she herself brought Lionel to sport club trainings. Later on Lionel often devoted his first goals to her.
When the boy was 11 his family moved to Barselona. At 13 Lionel became a member of "Barselona" club team to which he belongs up to now.
Lionel Messi is married and has two sons.
Together with his team he won a lot of Europian and World Championships.
As the best player he was awarded 5 times the prize "The Gold Ball" and one prize "The Diamond Ball". The newspapers wrote: "...His legs are like Maradona's, his speed is like Crowford's and he passes like Ronaldinio"

Я хочу рассказать о Лионеле Месси, который является одним из лучших футболистов современности и одним из лучших игроков всех времен! Он был лучшим игроком в мире в 2009-2012 годах.Лионель Месси родился в июне 1987 года в городе Росарио, в Аргентине. У него есть два брата и сестра. Двое его кузенов также футболисты. Семья его отца родом  из Италии, но предки переехали в Аргентину в 1883 году.Месси начал играть в футбол, когда ему было 5 лет. Его отец, рабочий фабрики, был его первым тренером. Бабушка Месси хотела, чтобы он стал футболистом, и она сама водила Лайонела на спортивные тренировки клуба. Позже Лионель часто посвящал ей свои первые голы.Когда мальчику было 11 лет, его семья переехала в Барселону. В 13 лет Лионель стал членом команды клуба "Барселона", которому он принадлежит до сих пор.Лионель Месси женат и имеет двух сыновей.Вместе со своей командой он выиграл много чемпионатов Европы и мира.Как лучший игрок он был награжден 5 раз премией "Золотой мяч" и призом "Бриллиантовый мяч". Газеты писали: "...его ноги, как у Марадоны, его скорость, как у Кроуфорда и его пассы как у Рональдинио"

Full name: Polina Gagarina
Country: Russia 
Date of birth: 27 March,1987 (Saratov)
Family: She's married; Son: Andrew.
Hobbies: Singing and writing songs.
Polina Gagarina is a Russian pop singer, songwriter, actress and model.
In the year two thousand three Polina Gagarina took part in the television project "Star Factory 2". She won the contest. She starred in  five films. She has eighteen of her own clips. Polina Gagarina speaks Greek.
In the contest "New Wave"- she won the 3rd place.
In the contest "Folk star"- she won the 2nd place.
In May 2015 she represented Russia at the Eurovision Song Contest 2015, where she won 2nd place.

I think that borsch can be rightfully considered the symbol of Russian and Ukrainian national cuisines. When foreigners come to a Russian restaurant, first of all, they order two dishec: pelmeni and a plate of this wonderful, hot, deep-red soup with a piece of rye bread. There is a great variety of methods of borsch cooking: in every region people use their own culinary subtleties that make this dish really special and delicious. Borsch can be cooked with or without meat, from a bone broth, with pork, beef or chicken, with lard or mushrooms, with fresh or sour cabbage. Finally, it can be cold or hot. But one fact is undisputable: this soup is the most popular first course on the territory of Russia and Ukraine.