Given the question: Extract the answer to the question from the following context. Question: Earning a degree without physically attending classes Context: In 1977, Schwarzenegger's autobiography/weight-training guide Arnold: The Education of a Bodybuilder was published and became a huge success. After taking English classes at Santa Monica College in California, he earned a BA by correspondence from the University of Wisconsin–Superior, where he graduated with a degree in international marketing of fitness and business administration in 1979.
The answer is:
BA by correspondence