Which Scenario Is an Example of an Objective Assessment of Employee

Which scenario is an example of an objective assessment of employee performance?

A) Lorelle, a media producer, is judged by the quality of the videos and simulations she produces.
B) Blake, a car salesman, is judged by the number of cars he has sold.
C) Maria, a teacher, is judged by her ability to identify and correct problems in her classroom.
D) Alfonso, an architect, is judged by the creativity of his designs.
E) Trisha, a software engineer, is judged by her ability to collaborate with her co-workers.