Scientists have made the world's first human-sheep----with the body of a sheep and half-human organs . Amazing, but true. The sheep is15percent human and 85 percent sheep. The breakthrough makes it possible to use animal organs in human bodies in the future. Professor Esmail Zanjani of University of Nevada, US, has spent seven years And over $9 million on the work. Zanjani took stem cells from the human body and put them into the sheep while it was still in its mother's body. The stem cells made other cells that grew into organs. Zanjani believe that in the future such sheep might be used to help humans. Two months later a human-sheep is born, it has a liver , heart, ling and brain that are part-human. These organs could be used to help people in need of them. There are different opinions about his work, however. Some say that scientists don't have the right to create new creature . Using animal organ might bring animal viruses into human bodies. Others are afraid that the work might change sheep. But Professor Anjani has said that this is impossible. The appearance of the first human-sheep means _ . A) sheep will be cleverer and stronger in the future B) sheep are as important as human in the future C) sheep will take the place of humans in the future D) animal organs may be used in human bodies
Answer:
D