Superstars in Sports or Entertainment Presumably Would Be Willing to Continue

Superstars in sports or entertainment presumably would be willing to continue working in their specific areas for lower income than they are currently earning. This implies that

A) the large salaries serve no allocative function and only serve to make the superstars richer.
B) superstars are exploiting their fans by receiving such a large salary.
C) superstars do not respond to monetary incentives.
D) the high salaries are used to allocate their time but fail to bring in new sources of supply (other superstars) that are exactly like themselves.