That was the only gate _____ we could rush out and save those _____ were in great danger.

  A. that; which               B. which; who        

  C. through which; who        D. at which; who

That was the only gate _____ we could rush out and save those _____ were in great danger.

1. A.
   that; which
2. B.
   which; who
3. C.
   through which; who
4. D.
   at which; who