When the retained material is subjected to some superimposed or surcharged load, the total horizontal pressure due to surcharged load is (where p = Intensity of the supercharged load)

• A. <img src="/_files/images/mechanical-engineering/strength-of-materials/123-438-1.png">
• B. <img src="/_files/images/mechanical-engineering/strength-of-materials/123-438-2.png">
• C. <img src="/_files/images/mechanical-engineering/strength-of-materials/123-438-3.png">
• D. <img src="/_files/images/mechanical-engineering/strength-of-materials/123-438-4.png">