Bill has taken three history courses and found them very stimulating and valuable, so he signs up for another one, confi dently expecting that it too will be worthwhile.
a. Suppose that his previous history courses were in ancient history, modern European history, and U.S. history.
b. Suppose that his previous history courses had all been taught by the same professor scheduled to teach the present one.
c. Suppose that his previous history courses had all been taught by Professor Smith, and the present one is taught by Professor Jones.
d. Suppose that Bill had found his three previous history courses to be the most exciting intellectual experiences of his life.
e. Suppose that his previous history courses had all met at 9 A.M ., and that the present one is also scheduled to meet at 9 A.M .
f. Suppose that, in addition to the three history courses he took previously, Bill had also taken and enjoyed courses in anthropology, economics, political science, and sociology.