Which of the followings hold true for mere exposure effect?

A. This effect is most likely to happen when individuals have no pre-existing negative attitude toward the stimulus,

B. The last few exposures someone has to a stimulus are more potent than earlier ones.

C. The first few exposures someone has to a stimulus are more potent than later ones.

D. This effect is most likely to happen when individuals have pre-existing negative attitude toward the stimulus,