Most management teams use ‘appraisal’ but what is meant by this term?

Most management teams use ‘appraisal’ but what is meant by this term?

(a)  A system used to improve the performance of personnel.

(b)  The main way in which an employees wages are determined.

(c)  A system of reward points offered by retailers to attract customer loyalty.

(d)
  The evaluation of an individual employee’s performance over a given period of time

 
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