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.
The supervisor emphasised on the need to gather as much information as possible.

Correct option is C

Option (c) contains an error. The correct phrase should be "The supervisor emphasised the need to gather" without the preposition "on." "Emphasise" is a verb that does not typically require the preposition "on" when followed by a noun or an infinitive verb.
· Grammatical rule used: Certain verbs do not require specific prepositions when followed by objects or infinitives, and "emphasise" is one of those verbs. The use of "on" in this context is unnecessary and incorrect.
· Example: The teacher emphasized the importance of regular study habits.