Provide Concluding Statement for Argument Practice Test

The passage presents this argument: The school should add more crossing guards because they slow traffic, help younger students cross safely, and make parents feel calmer at drop-off. Which conclusion best follows from the reasons?

Read the argument: Our school should start a composting program because it reduces cafeteria trash, creates soil for the garden, and teaches students about conservation. Which revision would improve this weak conclusion: "Composting is good for the school."