Which of the following best illustrates a case of negative reinforcement in Warren’s interaction with his students? a. Warren commenting, “I realize that percentages and decimals aren’t your favorite...

Which of the following best illustrates a case of negative reinforcement in Warren’s interaction with his students?

a. Warren commenting, “I realize that percentages and decimals aren’t your favorite topic, and I’m not wild about them either, but we have to learn them, so we might as well get started.”

b. Warren saying, “Now, . . . when I see a problem like this, I think, ‘What does the jacket cost now?’ I have to figure out the price . . .”

c. The students working several examples at their desks and discussing the solutions.

d. The students complaining and Warren decreasing the length of the homework assignment in response to their complaints.