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