In the Context of Inquiries in the Selection Process, the Americans

In the context of inquiries in the selection process, the Americans with Disabilities Act:

A) does not permit the use of drug tests until a job has been conditionally offered.
B) prohibits employers from hiring individuals because of drug use for medical or nonmedical purposes.
C) allows the use of all types of pre-employment medical exams.
D) does not consider pre-employment drug tests to be medical exams.