The Lock-And-Key Theory Proposes That ____

The lock-and-key theory proposes that ____.

A) specific taste molecules have the power to excite specific receptors on the tongue
B) taste sensation occurs when specific molecules split apart to create a chemical chain reaction on the tongue
C) smell sensation occurs when specific molecules split apart to create a chemical chain reaction in the nose
D) specific odor molecules have the power to excite specific receptors in the nose