Which of the following is NOT true about $360-$degree appraisals?

A$.$ It is important to train all raters prior to administering $360$ degree appraisals, including coworkers and subordinates of the person appraised.

B$.$ They may include outside raters, such as customers, consultants, or assessment centers.

C$.$ They often include self$-$appraisal, peer appraisal and subordinate appraisal.

D$.$ Employees are usually not very concerned about the political nature of coworker appraisals.