A.A does not discharge the other joint promisor, neither does it free the joint promisor so released from responsibility to the other joint promisor or joint promisors
B.Discharges the other joint promisor but it does not free the joint promisor so released from responsibility to the other joint promisor or joint promisors
C.Discharges the other joint promisor also frees the joint promisor so released from responsibility to the other joint promisor or joint promisors
D.Release of one of such joint promisors is not possible