Sam wants to be a clinical psychologist. He has been accepted at two different graduate schools. Both schools are equally prestigious and will provide him with an outstanding education. However, he is finding it difficult to choose between the two. According to Neal E. Miller, this type of conflict is known as a(n):

A) avoidance-avoidance conflict.
B) approach-approach conflict.
C) approach-avoidance conflict.
D) multiple approach-avoidance conflict.