For the simply supported beam shown in the given figure, at what distance from the support A, is the shear force zero?

• A. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/16-1243-1.png">
• B. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/16-1243-2.png">
• C. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/16-1243-3.png">
• D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/16-1243-4.png">