________left the door unlocked must be held responsible for the accident.

A．Whomever

B．Whoever

C．Whatever

D．Whenever

采用边长为0.6m的方形载荷板完成了黏土地基的浅层平板荷载试验，p-s曲线上线性段的荷载p=200kPa，相应的沉降s=20mm。土体的变形模量E₀为（）。

A．3.88MPa

B．4.03MPa

C．4.55MPa

D．4.38MPa