Which Statement by the Nursing Professor Is Accurate About the NCLEX-RN

Which statement by the nursing professor is accurate about the NCLEX-RN exam? The purpose of the NCLEX-RN test plan is to ensure that all

A) "test takers answer items of comparable difficulty."
B) "test takers answer approximately the same number of items."
C) "test items are job related."
D) "clinical specialties will be equally represented."