College

Parker read 20 pages of a book about Supreme Court Justice Sonia Sotomayor in 60 minutes.
Rowan read 25 pages of the book in 75 minutes. Did Parker and Rowan read at the same rate?

A. No, because 75 - 60 ≠ 25 - 20.
B. No, because 60 ÷ 20 ≠ 75 ÷ 25.
C. Yes, because the ratio of minutes to pages is constant.
D. Yes, because as the number of pages increased, the number of minutes increased.