Due to settlement of support at A of propped cantilever shown in the figure given below, what is the vertical reaction at B ?

• A. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/45-1444-1.png">
• B. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/45-1444-2.png">
• C. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/45-1444-3.png">
• D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/45-1444-4.png">