An equilateral triangular plate is immersed in water as shown in the above figure. The centre of pressure below the water surface is at a depth of

• A. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/55-907-1.png">
• B. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/55-907-2.png">
• C. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/55-907-3.png">
• D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/55-907-4.png">