A fixed beam as shown in Fig. I is loaded with a U.D.L. over the entire span, the total load being W; when load was just increased to W1, the deformed shape as shown in Fig. II was seen. The value of W1 (plastic moment of resistance = Mp) is

• A. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/57-358-1.png">
• B. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/57-358-2.png">
• C. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/57-358-3.png">
• D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/57-358-4.png">