Tanja forms T Plumbing, Inc., and states in the Articles of Incorporation that the business purpose of which is $"$to provide plumbing Later, Tanja expands the business to also include heating and air conditioning services. Under the Articles, this would be

permitted because such services are logically related to plumbing.

permitted as an ultra vires act

unpermitted as an ultra vires act

permitted under the implied powers of the corporation