Select the most appropriate option that can substitute the highlighted words in the given sentence.
He was an irresponsible person to the matter of taking up responsibilities.

Correct option is B

The correct substitution of the highlighted words is (b) in the matter of taking up.
· Explanation: The phrase "in the matter of" is the correct idiomatic expression to refer to a specific topic or situation. The preposition "in" is used here to specify the subject under discussion.
· Grammatical Rule Used: Prepositional phrases must match the context they modify. "In the matter of" correctly conveys the intended meaning.
· Example: The lawyer advised him in the matter of property disputes.
Other options are incorrect because:
· (a): "At the matter of" is grammatically incorrect.
· (c): "By the matter of" does not fit the context.
· (d): "Along the matter of" is not a standard phrase.