3.The man pulled out a gold watch were made of small diamonds. 4.A. the hands of whomB.

问题补充：

3.The man pulled out a gold watch, were made of small diamonds.

4.

A. the hands of whom

B. whom the hands of

C. which the hands of

D. the hands of which

答案：

A. the hands of whom

B. whom the hands of

C. which the hands of

(答案→)D. the hands of which

解析：“表的指针”是用钻石造的。这里涉及到了所有关系。在定语从句中，对于事物的所有关系我们可以使用whose + 名词，the + 名词 + of which 或of which the + 名词这三种形式。D项符合 the + 名词 + of which 结构，所以是正确的。