Research Has Shown That Clinical Experience Increases Only Slightly the Accuracy

Research has shown that clinical experience increases only slightly the accuracy of one's clinical predictions.ALL BUT WHICH of the following did the textbook offer as an explanation for this finding?

A) The measures upon which mental health professionals base their predictions do not have high validity, so they are no more valid in experienced hands than in inexperienced ones.
B) Once clinicians obtain job security, any enhanced accuracy from their experience is canceled out by a corresponding decrease in effort.
C) Clinicians often receive no feedback about their predictions, so they cannot learn from their experience.
D) Clinicians are biased toward remembering their accurate predictions and forgetting their inaccurate ones.