to
by
from
with
Answer is Wrong!
Answer is Right!
The correct answer is B. by.
The preposition “by” is used to indicate the means of transportation. In this case, the speaker is saying that the man went to Delhi by train.
The other options are incorrect because they do not indicate the means of transportation. The preposition “to” is used to indicate a destination. The preposition “from” is used to indicate a starting point. The preposition “with” is used to indicate accompaniment.