In a particular material, if the modulus of rigidity is equal to the bulk modulus, then the Poisson's ratio will be

• A. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/98-593-1.png">
• B. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/98-593-2.png">
• C. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/98-593-3.png">
• D. 1