Answer:
B, A person who is not a party to a contract but who the contracting parties meant to benefit from the contract and has rights to sue if the contract is not performed intended beneficiary
Step-by-step explanation:
Like in the above answer, a third party beneficiary is simply a party C that is not initially included in a contract between party A and party B but that will benefit from the performance of the contract between parties Aand B.
As a third party in a contract, he/she can sue the non performance of the contract as it is in the power of the third party to.
Cheers.