Unless a copy thereof is set forth in or attached to the petition, a response to a petition under this chapter shall:
(a) Set forth the substance of or have attached a copy of the agreement to arbitrate unless the respondent denies the existence of such an agreement.
(b) Set forth the names of the arbitrators.
(c) Set forth or have attached a copy of the award and the written opinion of the arbitrators, if any.
(Added by Stats. 1961, Ch. 461.)