Which of the following strategies is most clearly an example of increasing the EO for desirable behavior?

a. Julia keeps forgetting to floss her teeth. Therefore, she sets a timer to go off every evening reminding her to floss.
b. Michael has a problem of going grocery shopping while hungry, which results in him purchasing too much junk food. Therefore, he makes sure to eat before grocery shopping to decrease the likelihood of him purchasing junk food.
c. Sarah loves Las Vegas buffets and is visiting one for dinner. Since this is a somewhat pricey event, she wants to make sure she adequately consumes enough of the buffet food. Therefore, she makes sure not to eat much food earlier in the day before visiting the buffet so that she really wants the food and will consume more buffet food.
d. Karen would like to go to the gym more often. Therefore, she puts her workout clothes in her car to make it easier to transition to the gym.