请帮我分析一下这个句子The less the surface of the ground yields to the
请帮我分析一下这个句子
The less the surface of the ground yields to the weight of a fully-loaded truck, _____to the truck.
A. the greater stress is
B.greater is the stress
C.the stress is greater
D.the greater the stress
我觉得应该选A,但是答案是D,可是我怎么带入怎么觉得不对,请帮我分析一下,谢谢.