What are the central ideas of gladwell's essay?

The central ideas would be that the author has proved his point that no one in this world was born and reached the top of success without spending 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 rule to succeed.  

Hiii. appreciate the points

The correct answer is c. maybe