There is a growing tendency from the admissions offices of colleges to focus on aspects of candidates besides there academic background. Leadership skills, as well as solidarity, are personal traits which are sought by these colleges whenever they are reviewing candidates. Therefore, by having recorded proof of any of these, a candidate greatly increases his or her chances of getting admitted.
D and then if that doesn't work B. If you have anything else to ask me further about my answer (cause I have got to admit it is quite vague) just ask. Hope this helps :) x