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.
I was at a party / with some off my / friends in Mumbai.

Correct option is B

Option (b) contains an error.
· The incorrect word "off" is used instead of "of".
· "Off" means "away from" or "not on something," while "of" is used to indicate possession or association.
· The correct phrase should be "with some of my friends."
Grammatical Rule Used:
· "Of" is a preposition that indicates belonging or relation.
· "Off" is an adverb or preposition used to indicate separation or movement.
Example:
· Incorrect: I gave some off my books to my brother.
· Correct: I gave some of my books to my brother.