Carlos is revising his essay about long-distance bird migration. He wants to add more details. What detail would be most effective?

The most effective detail gives a specific example and a precise distance related to long-distance migration. Choice C says that the Manx shearwater migrates 8,700 miles, which directly adds concrete information. The other choices are broad, vague, or express an opinion rather than giving a useful detail.

AI-written and checked against the verified answer.