Which of the phrases given below should replace the portion in bold to make the sentence grammatically correct and meaningful? If the sentence is correct as it is, choose option E/5, which says "No correction required".

The teacher emphasized on the importance of punctuality during the meeting.

Option B is the correct answer.The verb "emphasized" does not require a preposition like "on" after it when directly followed by the object of emphasis. The phrase should be "emphasized the importance of punctuality", which is grammatically correct and concise.

Option A: "Emphasized" does not pair with "about." This construction is incorrect in standard English.

Option C: The preposition "at" is inappropriate in this context and does not fit grammatically.

Option D: The preposition "for" is not used with "emphasized" in this way. It would distort the meaning.