In the design of a front counterfort in a counterfort retaining wall, the main reinforcement is provided on i) bottom face near counterfort ii) top face near counterfort iii) bottom face near centre of span iv) top face near centre of span The correct answer is

• A. only (ii)
• B. only (i)
• C. both (ii) and (iii)
• D. both (i) and (iv)

Answer: (D)