A force F is applied on a uniform rod of cross-section A and a force F’ is applied on a uniform rod of cross-section 3A. What is the relation between F and F’ if the pressure on both is the same?

• A. F/F’ = 1/3
• B. F/F’ = 3
• C. F’/F = 1/3
• D. F/F’ = 1/9