Read the article and select the best answer. Article: Tu Youyou, a scientist at the China Academy of Chinese Medical Sciences, has no postgraduate degree. She has never studied or done research abroad. She is neither a member of the Chinese Academy of Sciences nor the Chinese Academy of Engineering. However, the 81-year-old pharmacologist has become the first scientist on the Chinese mainland to win a Lasker Award, the medical prize of the Albert and Mary Lasker Foundation. The Lasker Awards have existed since 1945. The winners are always people who have really helped us to understand, recognize, treat, cure and prevent disease. Tu was presented the 2011 Lasker Clinical Medical Research Award on September 23. She discovered a drug called artemisinin . The drug is now widely used against malaria . Tu and her colleagues joined a government project to find a new malaria drug in the late 1960s during the "cultural revolution" (1966~1976). They made 380 herbal extracts from 200 potential recipes. The recipes came from traditional Chinese medical books. The team then tested them on malaria-infected mice. Finally Tu became interested in an extract of the plant qinghao, or sweet wormwood . According to an ancient Chinese medicine book, qinghao was once used to treat malaria. However, the extract they made in the lab didn't work well. Tu thought the effective ingredient in qinghao may be destroyed by high temperatures. Therefore, Tu tried to make the extract with ether which has a much lower boiling point than water. In 1971, after more than 190 failures, Tu finally got an extract that was 100 percent effective against the malaria parasites . The extract was called qinghaosu, later renamed artemisinin. According to a statement on the Lasker Foundation website, during the past four decades, Tu's drug has saved millions of lives. It is especially important for children in the poorest and least developed parts of the world. However, not many people knew of the scientist until she won the Lasker Award this month. Lasker Awards are known as "America's... Question: In the process of discovering artemisinin, Tu _ . Options: A: began with a private project B: succeeded during the first experiments C: faced many different opinions D: made extracts in a creative way
Answer:
D