Miguel wants to use an employment test as part of the recruitment process for a new engineering position. He asks the HR department whether he can add a test with engineering problems to be given to every candidate. What is important to consider to make sure the tests do not discriminate?

A$)$That the questions are formatted the same.

B$)$That there is an answer key available.

C$)$That there is no evidence of bias.

D$)$That tests are only given to candidates with a particular skill set.