Two closed-coil springs of stiffness s and 2s are arranged in series in one case and in parallel in the other case. The ratio of stiffness of springs connected in series to parallel is

• A. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/55-349-1.png">
• B. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/55-349-2.png">
• C. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/55-349-3.png">
• D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/55-349-4.png">