Which of the following statements most accurately describes the responsiveness of an individual olfactory receptor?
Group of answer choices
A.A given olfactory receptor responds to one of four or five basic classes of odorants.
B.A given olfactory receptor responds to a wide range of odorants.
C.A given olfactory receptor responds only to a specific airborne chemical.
D.A given olfactory receptor responds to virtually any airborne chemical.