While estimating a reinforced cement structure the omitted cover of concrete is assumed _____.

A

at the end of reinforcing bar, not less than 25 mm or twice the diameter of the bar

B

in thin slabs, 12 mm minimum or diameter of the bar whichever is more

C

for reinforcing longitudinal bar in a beam 25 mm minimum or diameter of the largest bar which is more

D

All options are correct