In the Delayed Nonmatching to Sample Task, Animals Are Taught

Multiple Choice

In the delayed nonmatching to sample task, animals are taught in a single trial that a specific object is associated with a food reward. When this object is shown again in a subsequent trial in the presence of a new object, the animal

A) must select the old object again to receive a food reward.
B) must select the new item to receive a food reward.
C) must select first the old item, then the new item, to receive a food reward.
D) must select first the new item, then the old item, to receive a food reward.