Conversation so far:
Which University did Sherman Alexie go to?
Sherman Alexie's successes in high school won him a scholarship in 1985 to Gonzaga University, a Roman Catholic university in Spokane.
Did Sherman Alexie go to any other University?
In 1987, Sherman Alexie dropped out of Gonzaga and enrolled at Washington State University.
Did Sherman Alexie get a degree from WSU?
Sherman Alexie quit school just three credits short of a degree. However, in 1995, he was awarded a bachelor's degree from Washington State University.

Question: What did he study at WSU?
Self-contained rewrite: What did Sherman Alexie study at WSU?