When Micah was 2-years-old he was frightened by his Aunt Mabel's little dog, which had nipped him on the leg. Because of the incident, Micah developed a strong fear of small dogs but not of large dogs. This best illustrates which of the following?A. spontaneous recovery
B. stimulus discrimination
C. stimulus generalization
D. extinction

B. stimulus discrimination

Explanation:

Stimulus discrimination -

It refers to the activity by which a person responds only to certain stimuli , is referred to as stimulus discrimination .

The term stimulus discrimination derived its idea from  Stimulus Generalization , according to which , the body responds to all stimulus , weather it to be original or similar one .

Hence , from the given scenario of the question ,

The correct answer is B. stimulus discrimination .

question one --> answer d

question two --> answer c

question three --> answer d

question four --> answer d

question five --> answer d