In Psychologists' Conceptualization of Reciprocal Causation,which One of the Following

Multiple Choice

In psychologists' conceptualization of reciprocal causation,which one of the following is an internal variable?

A) Alma pays close attention to lectures in her science class.
B) Last year Bree received an A in science for only mediocre achievement.
C) Curt's friend Evan will be in his science class this year.
D) Doug's science class is using state-of-the-art simulation software to study human anatomy.