A stock insurance company is owned by stockholders. The stockholders provide capital, own shares of the company, and may receive stockholder dividends when declared. This is different from a mutual insurer, which is owned by its policyowners. In a mutual company, dividends are generally policyowner dividends and are treated as a return of excess premium rather than a return on stock ownership. A reciprocal company is an unincorporated arrangement in which subscribers insure one another through an attorney-in-fact, which is not the ownership structure described in the question. An assessable company is associated with the possibility of additional assessments against policyowners, not stockholder ownership. The wording “owned by its stockholders” and “dividends are paid” directly identifies a stock insurer. In exam terms, ownership controls the answer: stockholders own stock companies; policyowners own mutual companies. Reference topics: Insurer Classification, Stock Insurers, Mutual Insurers, Insurance Company Ownership.