Which of the following statements regarding thin and thick cylinders, subjected to internal pressure only, is/are correct?1. A cylinder is considered thin when the ratio of its inner diameter to the wall thickness is less than 15.2. In thick cylinders, tangential stress has highest magnitude at the inner surface of the cylinder and gradually decreases towards the outer surface

• A. 1 only
• B. 2 only
• C. Both 1 and 2
• D. Neither 1 nor 2