Which of the Following Statements Is Correct

Which of the following statements is correct?

A) It is much easier for the government, as an employer, to test an employee for drugs or alcohol than it is for a private employer.
B) Generally speaking, in most states, it is easier for a private employer than the government to test an employee for drugs or alcohol.
C) Neither the government nor private employers may test employees for drugs or alcohol.
D) Both the government and private employers may test employees for drugs or alcohol without restriction.