Research on the Relationship Between Academic Self-Concept and Achievement Suggests

Research on the relationship between academic self-concept and achievement suggests that

A) there is no relationship between these two characteristics.
B) academic self-concept affects achievement, but prior achievement does not affect one's academic self-concept.
C) prior achievement affects one's academic self-concept, but the status of one's self-concept does not affect achievement.
D) prior achievement may affect one's academic self-concept and the current strength of one's academic self-concept may affect achievement.