Question: Experimental studies of the relation between level of motivation and level of performance have shown that
A: the higher the intensity or degree of motivation, the better the level of performance
B: for a given task, there is an optimal level of motivation
C: motivation is important to learning but not to performance
D: optimal performance is obtained relatively more often by internalizers than by externalizers
Please eliminate two incorrect options first, then think it step by step and choose the most proper one option. Provide response in all capital letters, no lowercase letters allowed.
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