Select the most appropriate option that can substitute the highlighted segment in the given sentence. If no substitution is required, select ‘No substitution’.
No matter how hard work you, your boss will not recognise your efforts.

Correct option is A

The correct substitution of the highlighted words is (a) hard you work.
Explanation: The sentence requires proper placement of the adverb hard to maintain grammatical accuracy. Adverbs generally follow the subject in such cases.
Grammatical rule used: When using phrases like "no matter how," the correct sentence structure is "no matter how + adverb + subject + verb."
Example: No matter how hard you try, success depends on consistency.