The main reinforcement in the toe of a T- shaped R C. retaining wall is provided on_______________?

1. top face parallel to the wall
2. top face perpendicular to the wall
3. bottom face paralleUo the wall
4. bottom face perpendicular to the wall
The correct answer is ?
A. only (2) is correct
B. (1) and (2)are correct
C. (3) and (4) are correct
D. only (4) is correct