The Commission may, for the purpose of an investigation, order a person to —

(a) attend at a specific time and place for the purpose of being examined orally in relation to a complaint;

(b) produce such document, record, or article, as may be required with respect to any matter relevant to the investigation, which the person is not prevented by any other written law from disclosing; or

(c) furnish a statement in writing made under oath or an affirmation setting out all information, which may be required under the order.