(a) "Close corporation" means a corporation, including a close social purpose corporation, whose articles contain, in addition to the provisions required by Section 202, a provision that all of the corporation's issued shares of all classes shall be held of record by not more than a specified number of persons, not exceeding 35, and a statement, "This corporation is a close corporation." (b) The special provisions referred to in subdivision (a) may be included in the articles by amendment, but if