(a) One or more natural persons, partnerships, associations, flexible purpose corporations, or corporations, domestic or foreign, may form a flexible purpose corporation under this division by executing and filing articles of incorporation.
(b) If initial directors are named in the articles, each director named in the articles shall sign and acknowledge the articles. If initial directors are not named in the articles, the articles shall be signed by one or more incorporators who shall be persons described in subdivision (a).
(c) The corporate existence begins upon the filing of the articles and continues perpetually, unless otherwise expressly provided by law or in the articles.