planting crops that survive in droughts running water while brushing teeth washing vehicles frequently watering grass after a rainfall
I gave my students this multiple choice question: Which of these activities is used to conserve water?

Only one answer is correct among these 4 choices:
- planting crops that survive in droughts
- running water while brushing teeth
- washing vehicles frequently
- watering grass after a rainfall

Could you tell me which one is correct?

planting crops that survive in droughts