Last winter, many places of southern China were struck by heavy snowstorms, _____ more than 120 people were killed.

Last winter, many places of southern China were struck by heavy snowstorms, _____ more than 120 people were killed

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

Last winter, many places of southern China were struck by heavy snowstorms, _____ more than 120 people were killed.

       A．from which    B．in which             C．at which        D．for which

Last winter, many places of southern China were struck by heavy snowstorms, _____ more than 120 people were killed.

       A．from which        B．in which         C．at which           D．for which

Last winter, many places of southern China were struck by heavy snowstorms, _____ more than 120 people were killed.