Find out whether there is any grammatical error in below sentence. The President had hardly spoken / a few words / when the microphone stopped functioning.

Answer: Option D

The sentence "The President had hardly spoken a few words when the microphone stopped functioning" is grammatically correct.

The structure of the sentence properly uses the past perfect tense had hardly spoken to indicate an action that was interrupted by another past action.

The phrase a few words is correctly placed as the object of the verb spoken.

The clause when the microphone stopped functioning appropriately follows to describe the interruption.