Final answer:
The correct answer is C. Sustainability effort. Creating a backyard vegetable garden and assigning students to take charge of watering promotes sustainable practices and encourages students to work towards a greener future.
Step-by-step explanation:
The correct answer is C. Sustainability effort. Creating a backyard vegetable garden and assigning students to take charge of watering is a sustainability effort because it promotes the production of sustainable and healthy foods. By involving students in growing their own vegetables, it encourages sustainable practices such as organic gardening, reducing food miles, and decreasing reliance on industrial agriculture. It also helps students understand the importance of taking care of the environment and working together towards a greener future.