The Mayan civilization a. lasted about 1,000 years. b. hit its peak about A. D. 750. c. was defeated by the Aztecs. d. came to a mysterious end. Please select the best answer from the choices provided A B C D

Which of the following comparisons is true? a: high school tests generally cover more material than college exams. b: your college curriculum is more fixed and standardized than your high school curriculum. c: you get more personal attention in class from your college professors than from your high school teachers. d: college professors usually don't review test material in class the way high school teachers do.