C. Elegans Avoid Particular Odors Because These Odorants

C. elegans avoid particular odors because these odorants:

A) are inherently aversive chemicals.
B) activate particular receptors that initiate a signal transduction cascade signifying aversion.
C) activate particular receptors that are expressed by specific neurons that mediate avoidance.
D) inhibit particular receptors that are expressed by specific neurons that mediate attraction.
E) None of the above