The horizontal thrust offered by the retaining wall on the retained material is (where w = Specific weight of the retained material, h = height of retaining wall, and ( ) = Angle of repose of the retained earth)

• A. <img src="/_files/images/mechanical-engineering/strength-of-materials/124-439-1.png">
• B. <img src="/_files/images/mechanical-engineering/strength-of-materials/124-439-2.png">
• C. <img src="/_files/images/mechanical-engineering/strength-of-materials/124-439-3.png">
• D. <img src="/_files/images/mechanical-engineering/strength-of-materials/124-439-4.png">