Identify the term that is correctly defined.

A$.$ A contract of adhesion is one in which the terms can be modified.

B$.$ Unilateral contracts require that both the insurance company and the insured are legally required to promise to perform.

C$.$ An indemnity contract allows the policyowner to be reimbursed for more than the actual amount of the loss.

D$.$ An aleatory contract is one in which one party might receive benefits substantially greater in value than the benefits received by the other party.