In a Study on Context Cues,people Learned Words While on Land

In a study on context cues,people learned words while on land or when they were underwater. In a later test of recall,those with the best retention had

A) learned the words on land,that is,in the more familiar context.
B) learned the words underwater,that is,in the more exotic context.
C) learned the words and been tested on them in different contexts.
D) learned the words and been tested on them in the same context.