Institutional advertising:a) tries to stimulate primary demand rather than selective demand. b) involves no media costs. c) tries to develop goodwill for a company or even an industry. d) tries to keep a product's name before the public. e) is always aimed at final consumers or users.

c) tries to develop goodwill for a company or even an industry.

Explanation:

Institutional Advertising is an advertising approach - attempting to promote a company, corporation, brand, business, institution, organisation entity. It's direct aim is not to focus on selling goods & services. It rather focuses on building a goodwill, rapport between the entity & the potential customers, associators. It is usually done via community outreach programmes, to address community & social image building largely.

answer///supply is elastic, and demand is inelastic;