If Cv is the coefficient of consolidation, t is the time and d is drainage path of one dimensional consolidation of soil, the time factor Tv, is given by

• A. <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/42-11-172-1.png">
• B. <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/42-11-172-2.png">
• C. <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/42-11-172-3.png">
• D. <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/42-11-172-4.png">