39 According to this passage, what happens when a man receives a heart from a woman?
(A) The success rate is higher than when he receives one from another man.
(B) His body is more likely to accept it than when a woman receives one from another woman.
(C) His body is more likely to reject it than when a woman receives a heart from a man.
(D) He has the same chance of success as when he receives one from another man.