In the given sentence, identify the segment which contains a grammatical error.
Due to the lockdown most schools teaches students through online classes.

Correct option is B

Option (b) contains an error.
Explanation of Error:
The subject of the verb “teaches” is “most schools”, which is plural. Therefore, the verb should also be in plural form: “teach”, not “teaches.”
· Incorrect: most schools teaches students...
· Correct: most schools teach students...
Grammatical Rule Used:
Subject-Verb Agreement Rule: A plural subject must take a plural verb, and a singular subject must take a singular verb.
· Example:
· She teaches math. (Singular subject)
· They teach math. (Plural subject)
Information Booster:
· “Teaches” → singular form (used with he/she/it)
· “Teach” → plural form (used with we/you/they)