Questions 9 and 10 are based on the following news. At the end of the news item, you will be given 20 seconds to answer the questions. Now listen to the news. What are the scientists at the University of California doing to help patients blink
A．They are transplanting a piece of muscle from the leg to the eye. B．They are doing surgeries on the eye to help patients blink. C．They are doing tests of a new blink system on real patients. D．They are developing artificial muscles to help patients blink.