If e0, e, ', 0' have their usual meanings, the coefficient of compressibility (ac), is given by

• A. <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/41-11-167-1.png">
• B. <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/41-11-167-2.png">
• C. <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/41-11-167-3.png">
• D. <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/41-11-167-4.png">