In the given question, a part of a sentence is printed in bold. Below each sentence, some phrases are given which can substitute the bold part of the sentence. Find out the phrase which can correctly substitute that part of the sentence. If the sentence is correct as it is, mark the answer as 'No correction required' or 'No Improvement'.
The loud and incessant chatter worries your father who is trying to concentrate.
Irritates
The loud and incessant chatter irritates your father who is trying to concentrate.