In the experiment with Little Albert, the conditioned stimulus was __________.

A) Albert
B) the rat
C) the loud noise
D) the laboratory room

In the experiment with Little Albert, the conditioned stimulus was the rat. Initially, Albert did not fear the rat, but by pairing the presentation of the rat with a loud noise, he became conditioned to fear it. Therefore, the rat became a conditioned stimulus that elicited a fear response in Little Albert.