Question #N1403

Which choice completes the sentence so that it conforms to the conventions of Standard English?
A. The train, which is late, arrived at the station.
B. The train which is late, arrived at the station.
C. The train, which is late arrived at the station.
D. The train which is late arrived at the station.

Correct Answer is: A

The correct answer is A. Choice A correctly uses a comma to set off the nonrestrictive clause "which is late" from the rest of the sentence. The other choices are incorrect because they either do not use a comma or they use a comma incorrectly.