What should Oreo the cat major in if he goes to college? Why?

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I was just listening to the radio and heard that someone obtained a high school diploma through the email for his cat Oreo. Wondering, now that he has a high school diploma, what should he major in if his owner should decide to enroll him in college? (And by the way, I am hoping he actually does not enroll him in college and think it is sad that a high school diploma was obtained by a cat... but I must admit that the idea of a cat going to college is rather humorous and am interested in hearing what he could major in and why.)