In Some Studies, Participants Have Been Asked to Visualize a Particular

In some studies, participants have been asked to visualize a particular stimulus (e.g., the letter A) . If the same stimulus is then presented at low contrast, visualization

A) has no effect on the perception of the stimulus.
B) primes perception, but no more than when participants were asked to visualize a different letter (e.g., the letter B) .
C) disrupts perception of the stimulus.
D) serves to prime perception of the stimulus.