Which of the following is an example of the mere exposure effect?

a. Adrianna has started arriving tardy to her second period class to avoid a group of kids in the hall who constantly tease her.

b. Abe has biked the same route to school so many times that he no longer has to think about where to turn.

c. Daiyu has seen the same toothpaste ad on television a hundred times. Each time she sees it she hates it more.

d. Abdul has always loved dogs, so he adopted one from the local shelter.

e. Guiren didn’t like sushi the first couple times he tried it, but his friend encouraged him to keep eating it and now it’s one of his favorite foods.