Social & Preventive Medicine A study to evaluate the relationship between smoking exposures taken during PNC visit and the child bih weight after delivery. This type of study is- A Case control B Prospective coho C Cross sectional D Clinical trial 💡 Explanation A study to evaluate the relationship between smoking exposures taken during PNC visit and the child bih weight after delivery. This type of study is- ✓ Correct Answer: B. Prospective coho