Find out whether there is any grammatical error in below sentence.
If the by-stander had not been / familiar with first-aid techniques / the driver which had met / with the accident would have died.

A. If the by-stander had not been

B. familiar with first-aid techniques

C. the driver which had met

D. with the accident would have died

E. No error

Answer: Option C

Solution(By Examveda Team)

the driver who had met