To Say That the Relation of Goal Difficulty to Performance

Multiple Choice

To say that the relation of goal difficulty to performance is curvilinear means that

A) performance levels off as the limits of a person's ability are approached.
B) goal difficulty increases the closer a person comes to attaining the goal.
C) goal difficulty levels off the closer a person comes to attaining the goal.
D) performance increases as the limits of a person's ability are approached.