Which one of the following is true in relation to courts of inquiry under section 6 of the Industrial Disputes Act, 1947

(A) The court of inquiry is constituted by the State Government by notification in the official gazette

(B) The court always consists of five independent persons and out of them one person is appointed as Chairman

(C) The court enjoys power to consider and decide any matter under the provisions of this Act

(D) The period within which the report is to be submitted is not mandatory and the report may be submitted even beyond the period of six months without affecting the legality of the inquiry.