Dental A local restaurant was the focus of a botulism outbreak. The state epidemiologist most likely used which format to determine the cause of the disease? A Cross sectional study B Prospective study C Retrospective study D Case–control study 💡 Explanation A local restaurant was the focus of a botulism outbreak. The state epidemiologist most likely used which format to determine the cause of the disease? ✓ Correct Answer: C. Retrospective study