Which is the correct answer?

Generally speaking,in Ontariowhen is drug and alcohol testing of employees least likely to be legally allowed?

a. as part of a return-to-work program after an employee returns from a rehabilitation program

b. when there is a reasonable suspicion of impairment

c. when there's been an accident or "near miss" in the workplace

d. when it's administered randomly to employees as a way to deter substance abuse