The deflection at the free end of a cantilever subjected to a couple M at its free end and having a uniform flexural rigidity EI throughout its length 'L' is equal to

• A. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/94-572-1.png">
• B. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/94-572-2.png">
• C. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/94-572-3.png">
• D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/94-572-4.png">