Of the following, the one that does not belong with the others is ________

In some species, female mate choice may lead to runaway sexual selection. This process refers to:

a. Selecting to have all males. b. Selecting to have all females. c. Selecting mates that have certain characteristics. d. Fleeing danger to be able to reproduce.

When three-year-old Ashley hears her father at the door, she runs to the front door to greet him and receives a hug from her father. This hug is considered a consequence that has what effect on Ashley's response of running to the door?

a. strengthens it b. classically conditions it c. vicariously conditions it d. extinguishes it