In a prospective study comprising 10,000 subjects,6000 subjects were put on beta carotene and 4000 were not.3 out of the first 6000 developed lung cancer and 2 out of the second 4000 developed lung cancer.What is the interpretation of the above results?

• A. Beta carotene and Lung Cancer have no relation to each other
• B. Beta carotene is protective in lung cancer
• C. Beta carotene is carcinogenic
• D. The study design is not sufficient to draw any meaningful conclusions