Which of the Following Is True About the Administration of Drug

Which of the following is true about the administration of drug tests?

A) The tests are administered mainly out of curiosity, there is no link between drug use and behavior on the job
B) Employees have successfully challenged dismissals based solely on the result of a random drug test.
C) Use of drug testing is in decline given the number of law suits lost when applicants claim "invasion of privacy"
D) Maintaining the confidentiality of test results is not an important part of the drug testing process
E) The most useful information gained from drug testing is an indication of how frequently an applicant uses drugs.