Professor Kramer creates a survey to measure how happy his students are with his teaching this semester. He is teaching two classes: Psychology and Law and Introduction to Neuroscience. He writes the following questions for his survey:
A. What was your favorite part of this class?
B. Please rate how much you agree with the following statement using the scale
below: This was one of my favorite classes all semester.
1 - 2 - 3 - 4 - 5
Strongly agree - Agree - Neither agree nor disagree - Disagree - Strongly disagree
C. Which of the following is most true of you?
a. I am a very serious student.
b. I try only as hard as I have to.
D. How easy did you feel this class was?
1 - 2 - 3 - 4 - 5
Easy - Hard

Which of the questions above is an example of a forced-choice question?
a. Question C
b. Question A
c. Question D
d. Question B