In a counterfort retaining wall, the main reinforcement is provided on the i) bottom face in front counterfort ii) inclined face in front counterfort iii) bottom face in back counterfort iv) inclined face in back counterEort The correct answer is

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

Answer: (D)