(a) The certificate of incorporation of a membership nonprofit corporation may require that a merger under this article or under Article 8 of Chapter 1 be approved in writing by a specified person or group of persons in addition to the board of directors and members.
(b) The certificate of incorporation of a nonmembership nonprofit corporation may require that a merger under this article or under Article 8 of Chapter 1 be approved in writing by a specified person or group of persons in addition to the board of directors.
(c) A requirement in the certificate of incorporation described in subsections (a) or (b) of this section may only be approved by the written approval of the specified person or group of persons.