The cross-sectional area of the embankment of a canal fully in embankment in the given figure is

• A. <img src="/_files/images/civil-engineering/estimating-and-costing/17-23-83-1.png">
• B. <img src="/_files/images/civil-engineering/estimating-and-costing/17-23-83-2.png">
• C. <img src="/_files/images/civil-engineering/estimating-and-costing/18-23-83-3u.png">
• D. <img src="/_files/images/civil-engineering/estimating-and-costing/18-23-83-4.png">