Which writing error most hurts clarity?

A Missing an Oxford comma

B Run-on sentences and lack of clear paragraph structure

C Using "firstly" instead of "first"

D Ending a sentence with a preposition

✓ Correct Answer: Option B

Run-on sentences and poor paragraphing make it difficult for readers to follow your argument.

💡 Why is B) the correct answer?

The correct answer to the question "Which writing error most hurts clarity?" is Option B: Run-on sentences and lack of clear paragraph structure.

The other options — A) Missing an Oxford comma, C) Using "firstly" instead of "first", D) Ending a sentence with a preposition — are incorrect for this English question. As explained above: Run-on sentences and poor paragraphing make it difficult for readers to follow your argument.

📚 About This English Practice Question

This 2-level English question from the Sentence Correction topic is part of One Paper Preparation's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free English practice test or use flashcards for spaced repetition review.

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Which writing error most hurts clarity?

✓ Correct Answer: Option B

📚 About This English Practice Question

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