Given the question: Given the following passage  "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.",  answer the following question. Note that the answer is present within the text.  Question: Earning a degree without physically attending classes
The answer is:
BA by correspondence