B) Follows subjects forward in time from exposure to outcome. Prospective (cohort) studies follow participants forward from exposure to observe future outcomes.

A prospective study:

A Looks back at past data

B Follows subjects forward in time from exposure to outcome

C Has no control group

D Is completed in one day

✓ Correct Answer: Option B

Prospective (cohort) studies follow participants forward from exposure to observe future outcomes.

💡 Why is B) the correct answer?

The correct answer to the question "A prospective study:" is Option B: Follows subjects forward in time from exposure to outcome.

The other options — A) Looks back at past data, C) Has no control group, D) Is completed in one day — are incorrect for this English question. As explained above: Prospective (cohort) studies follow participants forward from exposure to observe future outcomes.

📚 About This English Practice Question

This 2-level English question from the Comprehension Passages 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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A prospective study:

✓ Correct Answer: Option B

📚 About This English Practice Question

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