Suppose there is a drought in your area and you want to get college students living in a dorm to use less water. Which of the following is least likely to work? a. Put up signs in public areas of the...

Suppose there is a drought in your area and you want to get college students living in a dorm to use less water. Which of the following is least likely to work?

a. Put up signs in public areas of the dorm urging students to conserve water.

b. Install devices that show students exactly how much water they used when they took showers.

 c. Start a competition with a neighboring dormitory to see who can conserve the most water in the next month.

d. Ask students to complete a questionnaire that makes them mindful of times they wasted water, then ask them to sign a public poster endorsing the idea of taking shorter showers.