Harley rarely used to gamble, but ever since she won a jackpot at a slot machine she has been motivated to spend as much time at the local casino as possible. Which theory BEST explains Harley’s...

Harley rarely used to gamble, but ever since she won a jackpot at a slot machine she has been motivated to spend as much time at the local casino as possible. Which theory BEST explains Harley’s behaviour? Select one: a. incentive theory b. the hierarchy of needs c. instinct theory d. drive theory