Which of the Following Is True About 360-Degree Feedback

Which of the following is true about 360-degree feedback?

A) Very few companies have adopted 360-degree systems.
B) Traditional evaluations are usually more effective than 360.
C) Evaluators in a 360-degree system tend to focus on objective performance.
D) Managers are likely to hear some personal comments on sensitive topics.
E) Using 360-degree feedback has several key advantages, and virtually no disadvantages.