You need to ensure that the unit test will pass

You are developing a class named EmployeeRoster. The following code implements the
EmployeeRoster class. (Line numbers are included for reference only.)

You create the following unit test method to test the EmployeeRoster class implementation:

You need to ensure that the unit test will pass.
What should you do?

A.
Option A

B.
Option B

C.
Option C

D.
Option D