A. Six turns of Calvin-cycle result in the production of one molecule of glucose (C6H12O6) R. Three molecules of ribulose 1, 5 – bisphosphate (Ru BP) react with three molecules of carbon dioxide to produce six carbon intermediates.

• A. A is correct and R is its explanation
• B. A is correct but R is not its explanation
• C. A is correct but R is wrong
• D. Both A and R are wrong