单选题 Which of the following is the author's main purpose in writing the passage?

A、 To present the history of Harvard College and compare it with that of Yale University.
B、 To criticize the conditions of the U.S. universities in the 19th century.
C、 To describe innovations in the U.S. higher education in the later 1800's.
D、 To introduce what was happening in major U. S. universities before the mm of the century.

【正确答案】 C

【答案解析】[解析] 本文主要是描写了19世纪后半期美国高等教育的改革。