—_____ book is this?

—It _____ Anna.[ ]

A. Who; belongs to  

B. Which; belonging to

C. Whose; belongs to

D. Whose; belonging to

钢筋混凝土预制桩采用静力压桩法施工时，先将桩压入()左右后停止，校正桩在互相垂直的两个方向的垂直度后，再继续压桩。

A.2.0m

B.1.5m

C.1.2m

D.1.0m