The stories about the Long March, ________ which this is one example, are well written.

1. A.
   in
2. B.
   from
3. C.
   of
4. D.
   about

The stories about the Long March, ________ which this is one example, are well written.

[　　]

The stories about the Long March, ________ which this is one example, are well written.

A. in　　　　　　　　　　 B. from　　　　　　　　 C. of　　　　　　　　　　 D. about

A. in　　　　　　　　　　 B. from　　　　　　　　 C. of　　　　　　　　　　 D. about