The over all depth of a solid slab is 20 cm and effective depth is 15 cm. The horizontal distance between parallel main reinforcement should not be more than

The over all depth of a solid slab is 20 cm and effective depth is 15

1.	The over all depth of a solid slab is 20 cm and effective depth is 15 cm. The horizontal distance between parallel main reinforcement should not be more than
A.	30 cm
B.	40 cm
C.	45 cm
D.	60 cm
Answer» D. 60 cm