Carlos Wondered Why He Did Not Get Called Back for the Follow-Up

Carlos wondered why he did not get called back for the follow-up interview.After telling his friend Tom about the interview,Tom said Carlos might have made the serious error of

A) offering more information than the interview requests,especially since it could be perceived as negative.
B) not correcting the interviewer when she said his employer's name incorrectly.
C) avoiding a discussion of salary.
D) doing all of these.