The central ideas would be that the author has proved his point that no one in this world would be born and reached the top of a success without spending an enormous time of practice which would be -- 10,000 hours.... His other central idea would be that according to him, as the psychologists look at the careers of the gifted, innate talent plays a smaller role but rule preparation or practice plays a bigger role to succeed.
Opinion tells an uncertain statement that may be valid or not while a fact is a statement that is tested to be true based on facts. In this case, the opinion statement is C since the event will still take place that is next year which puts uncertainty element to the statement given. The answer then is C.
Answer:
A female rejects undesired male peers
I think it makes the speaker sound casual.