For a wall carrying heavy load on low bearing capacity soil, A. Lean concrete bed is provided B. Thick concrete bed is provided C. Reinforced concrete bed is provided D. Both (A) and (C) of the above

The correct answer is D. Both (A) and (C) of the above.

A lean concrete bed is a type of concrete that is made with a low water-to-cement ratio. This type of concrete is often used as a base for walls and other structures that are built on low-bearing capacity soil. The lean concrete bed helps to distribute the weight of the structure over a larger area, which helps to prevent the soil from settling or sinking.

A reinforced concrete bed is a type of concrete that is reinforced with steel bars or mesh. This type of concrete is often used for structures that need to support heavy loads, such as walls and foundations. The steel reinforcement

In the case of a wall carrying heavy load on low bearing capacity soil, both a lean concrete bed and a reinforced concrete bed are necessary to ensure the stability of the structure. The lean concrete bed helps to distribute the weight of the wall over a larger area, while the reinforced concrete bed helps to strengthen the wall and prevent it from cracking or breaking under load.