letting faucets drip watering the grass every day turning off the faucet when brushing teeth running the dishwasher when it is not full
I gave my students this multiple choice question: Which action is an example of good water management?

Only one answer is correct among these 4 choices:
- letting faucets drip
- watering the grass every day
- turning off the faucet when brushing teeth
- running the dishwasher when it is not full

Could you tell me which one is correct?

turning off the faucet when brushing teeth