Select the option that will improve the highlighted part of the given sentence. In case no improvement is needed, select ‘No improvement required’.
Travelling is the best method to utilise time.

Correct option is A

The correct substitution of the highlighted words is (a) No improvement required.
Explanation: The sentence is grammatically and contextually correct as it stands.
· "Travelling" is a gerund functioning as the subject, which is singular.
· “Is the best method” is a correct structure using definite article ‘the’ before a superlative adjective ‘best’, which is also correct usage.
· “To utilise time” is a proper infinitive phrase acting as the object.
Grammatical rule used:
· Superlatives such as “best” are always preceded by “the” when referring to something specific.
· A gerund (verb+ing) can act as a singular subject.
Example:
· Reading is the best way to expand your vocabulary.