Which of the following techniques relating to post-decision dissonance could a clothing store use to increase customer satisfaction? a. Cut all prices in half. b. Ask customers to make a radio ad...

Which of the following techniques relating to post-decision dissonance could a clothing store use to increase customer satisfaction?

a. Cut all prices in half.

b. Ask customers to make a radio ad saying how great the store is.

 c. Charge a membership fee to shop at the store.

 d. Make all sales final.