In a preventive check, may officers subject a driver to a drug detection test?

A)Only if involved in an accident.
B)No; it is a test that can only be performed at a medical center.
C)Yes.Correct
# Explanation
Yes, traffic officers have the authority to perform drug detection tests during routine preventive checks, without the need for an accident or apparent cause. This measure is part of the discretionary powers of the police to guarantee road safety and detect drivers under the influence of drugs. Initial tests (such as saliva tests) can be performed on the public road during a routine check.