Which of the following is not a duty of the commission members?

The reason C is the correct choice is that providing training for salon owners typically does not fall within the responsibilities of commission members regulating esthetics. Their primary duties focus more on regulatory functions, such as conducting examinations for licensing applicants, inspecting salons and professionals to ensure compliance with established standards, and setting guidelines for the administration of exams to maintain fairness and accuracy in the licensing process.

In contrast, training salon owners is often the responsibility of private trainers or educational institutions rather than a regulatory body. This distinction helps ensure that commission members remain impartial in their regulatory role while allowing industry professionals to seek training from specialized sources.