Rhinoceros Horn Is Probably Considered an Aphrodisiac Because

Rhinoceros horn is probably considered an aphrodisiac because

A) it leads to longer-lasting erections for most men.
B) its shape resembles a penis and suggests male potency.
C) it leads to more powerful orgasms for most men.
D) it contains yohimbine, a sexual stimulant.
E) being wealthy enough to afford rhinoceros horn makes people appear more attractive.