Identify the INCORRECT section of the given sentence.
Four people / were / witnesses of / that event.

Correct option is A

Option (a) contains an error.
· Error Explanation: The correct preposition to be used with "witnesses" is "to" rather than "of".
Correct Sentence: Four people were witnesses to that event.
Example: He was a witness to the accident.
· Grammatical Rule Used: Certain nouns require specific prepositions for correctness and standard usage. "Witness" is always followed by "to" when referring to events.
Examples:
Advantage of/over
· "Advantage of" is used when referring to the benefit of something.
· "Advantage over" is used when referring to an upper hand over someone.
· Example: She took full advantage of the opportunity.
· Example: His experience gave him an advantage over other candidates.
Need for
· Indicates a necessity for something.
· Example: There is a growing need for renewable energy.
Access to
· Used to denote the ability to reach or use something.
· Example: Students have access to free online courses.
Connection to/with
· "Connection to" is used for linking with something.
· "Connection with" is used for relationships.
· Example: The wires have a connection to the power source.
· Example: He has a strong connection with the local community.
Reason for
· Indicates the cause or justification for something.
· Example: The reason for his absence was a family emergency.
Objection to
· Used to express disapproval or disagreement.
· Example: He raised an objection to the proposal.
Preference for
· Indicates liking one thing over another.
· Example: She has a preference for tea over coffee.
Familiarity with
· Refers to knowledge or recognition of something.
· Example: His familiarity with the topic impressed everyone.