The following sentence has been split into four segments. Identify the segment that contains a grammatical error.
My mother said / that the thief / Ramesh will learnt / his lesson soon.

Correct option is C

Option (c) "Ramesh will learnt" contains an error.
Explanation:
The verb "learnt" (past tense of "learn") cannot be used with "will", as "will" is always followed by the base form of the verb. The correct phrase should be "Ramesh will learn" instead of "Ramesh will learnt".
Grammatical rule used:
· When using the future tense with "will", the verb should always be in its base form.
· Example:
· ❌ Incorrect: She will went to the market.
· ✅ Correct: She will go to the market.