Answer:
B. How can a community garden benefit our school?
Step-by-step explanation:
This is the correct answer choose because the source says: A study that shows that students who participate in community activities perform better in school. Choice B is the only one that involves school into the question, and is the only one that can be answered by the study:
How can a community garden benefit our school?
A community garden can benefit our school because shown by a study, students who participate in community activities, such as a community garden, perform better in school.