The website is very popular. And it’s amazing that __________ designer of it is just __________ nine-year-old child.

A．the; the

B．a; the

C．the; a

D．a; a

某路堤的地基土为薄层均匀冻土层，稳定融土层深度为3.0m，融沉系数为10%，融沉后体积压缩系数为0.3kPa-1，即Es=3.33MPa，基底平均总压力为180kPa，该层的融沉及压缩总量接近（）。

A.16cm

B.30cm

C.46cm

D.192cm