A local movie theater had small cups of popcorn sitting on the counter where patrons purchased tickets. The cups were called "complimentary cups," and their purpose was to promote the sale of popcorn. This procedure is most similar to:.
a. self-reinforcement.
b. generalized reinforcement.
c. intermittent reinforcement.
d. reinforcer sampling.

Who is not spending wisely? erika goes shopping and saves her receipts. she totals how much she spent and writes it down. mia needs to buy a new pair of shoes because she joined the soccer team. she looks at newspaper ads to find the best price. lauren has been thinking about getting a puppy for a long time. she walks by the pet store at the mall and decides to get a puppy. erin makes a purchase online using a credit card. she knows that she can pay the entire bill when it arrives.