A seems very loosly related. B has a definite position and is related, but doesnt seem to pull from the text. C seemed to interject with unrelated information. D seems like it could be a nuetral standing ground to begin and doesnt add anything new. I would be between B and D, but B could potentially be the more correct chioce as it had a clear position and reasoning rather than being wishy washy.
because giving them lower grades can decrease their confidence in how they did but if you give them feedback they can see how they can improve themselves
