Which of the Following Is True Regarding the Rights of an Incidental

Which of the following is true regarding the rights of an incidental beneficiary to a contract to sue to recover incidental rights?

A) An incidental beneficiary may sue to enforce incidental contractual rights so long as those rights have vested.
B) An incidental beneficiary may sue to enforce incidental contractual rights only if the incidental beneficiary is also a creditor beneficiary.
C) An incidental beneficiary may sue to enforce incidental contractual rights only if the incidental beneficiary is also a donee beneficiary.
D) An incidental beneficiary may sue to enforce incidental contractual rights only if the incidental beneficiary is also a second-party beneficiary.
E) An incidental beneficiary cannot sue to enforce a contract which provided incidental benefits.