You enter a class and sit by a student, who tells you that Dr. Martin is hard and boring and does not care whether the students learn or not. At the end of the lecture, a friend asks you about Dr. Martin's class, and you tell her that a student you met before class was "certainly right" about Dr. Martin. His lecture was boring, and he does not care about his students. Your friend replies that he

was the "best professor" she ever had, that he graded fairly, told interesting stories, and was always willing to help the students after class. Your original view of the teacher was due to

a. a perceptual set.
b. precognition.
c. bottom-up processing.
d. dishabituation.

A