​While Assessing the Yearly Performance of the Employees, a Manager

Multiple Choice

​While assessing the yearly performance of the employees, a manager at LifeSmile Inc. has rated all of his employees as very good performers. Even the employees who performed badly and hardly met their targets were rated as very good performers. In this context, the manager at LifeSmile performed a(n) _____ error.

A) ​syntax
B) ​central tendency
C) ​contrast effect
D) ​elevation effect
E) ​leniency