Paul Newman was not only a movie star. He was also politically active, and fought for liberal causes. In 1968, he helped the Democratic Party presidential candidate in election. Newman protested the Vietnam War in front of the American Embassy in London. He expressed great pride that he was named on President Nixon’s list of enemies.
Paul Newman also worked on social issues important to him. In 1978, his twenty-eight year old son Scott died after taking too much drugs and alcohol. In response, Newman created the Scott Newman centre to help educate children and families on preventing drug abuse (吸毒).
In the 1980s, Newman decided to start selling a salad dressing he had created and given to many friends as gifts. The "Newman Own" company he started with his friends A.E. Hotchner became a huge success selling different food products. Over the gears, more than two hundred fifty million dollars in company profits have been donated to social causes and organizations.
One of these is the Wall Gang Camp, started by Paul Newman in 1988. Its aim is to provide a free summer camp experience to children with cancer and other serious diseases. There are now camps in the United States and several other countries. Newman said that he started the organization as a way to honor the role that luck has played in his life. He said that the camp is a way to help children who are unfairly affected by luck’s cruelty.

Most of this passage is about Paul Newman’s ______.

A．social work
B．movie career
C．political activities
D．business success