A thin cylindrical shell of diameter (d), length (l) and thickness (t) is subjected to an internal pressure (p). The ratio of longitudinal strain to hoop strain is

• A. <img src="/_files/images/mechanical-engineering/strength-of-materials/118-376-1.png">
• B. <img src="/_files/images/mechanical-engineering/strength-of-materials/118-376-2.png">
• C. <img src="/_files/images/mechanical-engineering/strength-of-materials/118-376-3.png">
• D. <img src="/_files/images/mechanical-engineering/strength-of-materials/118-376-4.png">