Tastes and smells are similar in that A) both types of stimuli are present in thousands of different chemicals. B) both types of stimuli must be dissolved in a body fluid before they can be detected. C) both types of stimuli are proteins (that is, molecules of very large size and high molecular weight). D) both types of stimuli evoke action potentials in the cells to which they bind. E) any given stimulus for one system evokes a response from the other system.