Achieving a Challenging Goal and Enjoying the Experience of Achieving

Multiple Choice

Achieving a challenging goal and enjoying the experience of achieving a challenging goal serve to develop our sense of industriousness. According to the research on learned industriousness, why is this so?

A) the delayed reinforcement associated with the achievement and enjoyment
B) the long-range focus associated with the achievement and enjoyment
C) the primary reinforcement associated with the achievement and enjoyment
D) the secondary reinforcement associated with the achievement and enjoyment