听力原文：Human cloning involves creating an embryo out of a cell taken from a fully develo

ped human being. "Reproductive" cloning means growing an embryo into a second, genetically identical human being. "Therapeutic" cloning, by contrast, means using an embryo as a source of stem cells for the person who supplied the originally cell. The theory is that stem cells with DNA identical to yours would be more likely to develop successfully into replacement parts for you. Brain cells for people with Parkinson's are the most promising example, but ultimately even severed limbs might grow back this way.

Which of the following statement is NOT true of therapeutic cloning？

A．Therapeutic cloning is used mainly for research purposes and therefore should be allowed to continue.

B．Therapeutic cloning is used for medical purposes and not for reproducing full human beings.

C．Therapeutic cloning is used for replacing the diseased parts of human organs.

D．Brain cell can be used in the future to cure the Parkinson's disease.