Select the alternative which is the best substitute of the phrase/words.
In the train of.

Correct option is A

Option (a) is the correct meaning of the given idiom.
Given Idiom: In the train of – To follow immediately after or as a result of something.
Example: Floods often come in the train of hurricanes.
Other related idioms:
· On the heels of – Immediately following.
· In the wake of – As a result or consequence of.
Meanings of other options:
· (b) In straight line: Without deviation.
· Hindi meaning: सीधी रेखा में
· · (c) In good book: In favor with someone.
· Hindi meaning: किसी की कृपा में होना
· · (d) Support to: To back or assist.
· Hindi meaning: सहयोग देना