When Using a Rating Scale to Summarize Evaluation Data, the Clinical

When using a rating scale to summarize evaluation data, the clinical nursing instructor should

A) write a description of each student's overall performance as well as her performance on each objective
B) be certain that her ratings reflect the criteria established for each item on the scale
C) average her own ratings with the student's self-evaluation using the same scale to ensure a fair result
D) all of these
E) only a and b