One of the most significant happenings in the year 2005 was the success of Shenzhou VI, ____ all Chinese were proud.

  A. of which            B. for which          C. which             D. in which

One of the most significant(意义重大的)happenings in the year 2005 was the success of Shenzhou Ⅵ, ________ all Chinese were proud．

1. A.
   of which
2. B.
   for which
3. C.
   which
4. D.
   in which