Answer:
See below. Third statement is likely the answer.
Step-by-step explanation:
I suppose the answer to the question is the third choice. There's nothing the matter with the claim that soccer requires children to work as a team (it is a team sport), to practice regularly and to develop new skills. If you practice regularly, there's no doubt you will get better.
The second choice is developing a team with specific roles. It does teach children to work together. How can these activities not build important life skills? We need to know things like working together, losing gracefully and that skills do not come naturally. One must work for them.
We have to forgive the writer's enthusiasm for claiming that parents ought to enroll their children immediately and I suppose this is the answer. However I think it is a small transgression in the author's mind, if it is one. There's so much benefit that it is not a bad idea to raise children by asking them to participate in sports.