单项选择题

Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions.
Now, listen to the passage.

Which two criteria are equally important in the calculation of the students’ final grade in the course().

A. Homework and quizzes.
B. Quizzes and the final exam.
C. Class participation and the midterm exam.
D. Homework and class participation.

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