Quality Insurance Company Issues a Business Liability Policy to Rapid

Quality Insurance Company issues a business liability policy to Rapid River Tours Inc. When an event occurs that gives rise to a claim, the insurer has a duty to

A) investigate to determine the facts.
B) file a suit against the insured so that a court can settle the claim.
C) find a third party on whom to impose liability.
D) refund any unearned amount of the premium.