Are you referring to this question?
Response to sign stimuli, or releasers, is generally based upon which of the following?
A) a few isolated features of the stimulus
B) how realistic the stimulus is
C) how colorful the stimulus is
If you are, then the answer is letter A. a few isolated features of the stimulus
>>>>One of the striking characteristics of animal behavior, in several species, is the emergence of species-typical behaviors triggered by relatively simple stimuli including the presence of a particular odor molecule or a particular visual pattern.