题目选项分析

Unlike the body's inflammatory response to cuts and sprains, in which widespread swelling and stiffness immobilize the injured area until it has healed, the body's more localized response to sunburn results in a distinct line dividing affected and unaffected areas of the skin.

Unlike the body's inflammatory response to cuts and sprains, where the injured area is immobilized with widespread swelling and stiffness until it has healed, sunburn generates a more localized response in the body, which results instead in a distinct line dividing affected and unaffected areas of the skin.