Yeah, I thought RTSTP was lower level, too. It might be considered upper at that school, though.
I agree that D and A is probably the easiest, Money and Banking the hardest. As far as the history tests, Civil War is easier than USSR, because you only have to learn about 10 years of US history, compared to about 100 years of soviet history.

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Bachelor of Science - Excelsior College
Liberal Studies
Areas of Focus: Administrative/Management & Health Professions