Choose the closest paraphrased version after the following sentence or the italicized part.
People were only shapes in dense, gray fog of dust and ash.（ ）
A、
People became shapeless in thick clouds.
B、
People could see nothing through dusty air.
C、
You could see thick clouds in the form of people.
D、
You could only see the outline of people in dusty air.
【正确答案】：D
【题目解析】：
句子释义：在灰蒙蒙、迷雾般的尘埃之中，人们只能显出身影。
D选项“你只能在尘土飞扬的空气中看到人的轮廓”符合题意。