A cohesionless soil having an angle of shearing resistance of , is standing at a slope angle of i. The factor of safety of the slope is tan i

• A. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/18-149-1.png">
• B. tan i - tan
• C. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/18-149-3.png">
• D. tan - tan i