Question

Ruomei has never liked biology, but she has a crush on her lab partner and always enjoys going to class because she sees him there. ruomei's friends are surprised to hear that ruomei now likes biology and is planning to take another class in the subject. ruomei's new liking for biology:

Answer 1

Ruomei has never liked biology, but she has a crush on her lab partner and always enjoys going to class because she sees him there. Ruomei's friends are surprised to hear that Ruomei now likes biology and is planning to take another class in the subject. Ruomei's new liking for biology has been conditioned.

Answer 2

Ruomei's new liking for biology has been conditioned.
She was 'conditioned,' aka learned to love biology because of the guy she has a crush on. Previously, she wasn't interested in biology, but when she started liking this guy, she somehow connected her attraction to him to her growing love for biology. Thus, the guy was her stimulus to become conditioned to love biology.