【单选题】

Considering the ------- of available options for investing one’s hard-earned retirement funds, as evidenced by a plethora of daytime television advertisements aimed at appealing to the incapacitated senior, you may well find it difficult to avoid feeling -------.

A、
A、diversity … ingratiated
B、dearth … belligerent
C、gamut … overwhelmed
D、appeal … mortified
E、periodicity … exhausted