Select the option that will improve the highlighted part of the given sentence. In case no improvement is needed, select 'No improvement required'.
None only did the men aid in the work, but the women also did their part.

Correct option is D

The correct substitution of the highlighted words is (d) Not only.
Explanation: The sentence is an example of correlative conjunctions, specifically "Not only... but also...", which are used in pairs to join two equally important and related ideas. The phrase “None only” is grammatically incorrect and does not fit the structure. The correct form is “Not only did the men aid in the work, but the women also did their part.”
Grammatical rule used:
Correlative conjunctions should appear in matching pairs. "Not only" must always be followed by "but also".
· Incorrect: None only... but also
· Correct: Not only... but also
Example:
· Not only did she complete her homework, but she also helped her brother.