The following sentence has been split into four segments. Identify the segment that contains a grammatical error.
A book market / was been operated by some readers / in the street when / they reached there.

Correct option is B

Option (b) contains an error.
Explanation of error:
· The phrase “was been operated” is grammatically incorrect.
· In passive voice, we use “was being” for past continuous tense, not “was been”.
Correct sentence:
“A book market was being operated by some readers in the street when they reached there.”
Grammatical rule used:
For past continuous passive voice:
was/were + being + V3
Example: The room was being cleaned when we arrived.
�� Grammar Booster:
Avoid using “was been” — it’s never correct. Use “has/have been” (present perfect) or “was being” (past continuous passive).