The following sentence has been divided into parts. One of them may contain an error. Select the part that contains the error from the given options. If you don’t find any error, mark ‘No error’ as your answer.
Vishnu and his friends / were listening to / the radio all morning.

Correct option is A

There is no error in the given sentence.
Explanation:
The sentence is grammatically correct. The subject "Vishnu and his friends" is plural, which correctly matches the plural verb "were listening."
The phrase "listening to the radio" is also correct, as we always use listen to when referring to audio sources like radio, music, or a lecture.
Example:
· Correct: "They were listening to the radio when the news broke."
· Incorrect: "They were listening the radio." (Missing to)