Select the most appropriate phrasal verb that can substitute the highlighted segment in the given sentence.
The firefighters tried their best to extinguish the fire.

Correct option is A

The correct substitution of the highlighted words is (a) put out.
Explanation:
The phrasal verb “put out” means to extinguish something (especially fire or light). It fits the context where firefighters are trying to stop the fire.
Grammatical rule used:
Phrasal verbs often replace verb phrases for concise expression.
Example: Please put out the candle before leaving.
Meanings of other options:
· (b) put on – to wear.
· (c) put in – to insert.
· (d) put off – to postpone.
Information Booster: Common Phrasal Verbs: put out = extinguish, put off = delay, put in = install, put on = dress