Explanation
Choice B is the best answer. The text makes a claim about the degradation of coral reefs, and, as an example for the claim, mentions certain coastal towns’ initiative to prevent it. The example demonstrates that it is possible to keep plastic debris from harming the reefs. The word “manageable” means controllable, and it appropriately aligns the claim with its example.
Choice A: “commonplace” means usual. The text does not, however, discuss how usual the degradation of coral reefs is.
Choice C: “normal” means ordinary. However, the text does not characterize the degradation of coral reefs as having no noticeable or striking aspects.
Choice D: “reported” means communicated. However, it does not make any sense in the context, since the text is about preventing the degradation of coral reefs, not reporting it.
✨ Expert's Tip ✨
Identify the relationship between the claim in the text and the example that illustrates the claim.