With Regard to Equal Employment Opportunity Aspects of Testing in the Selection

With regard to Equal Employment Opportunity aspects of testing in the selection process:

A) testing always results in adverse impact.
B) if tests are valid, the tests need not show a relationship to job performance.
C) employers should avoid testing, as testing has been shown to violate the rights of protected classes.
D) employers must be able to prove the relationship between performance on the test and performance on the job.