Percentage of steel for balanced design of a singly reinforced rectangular section by limit state method depends on

Percentage of steel for balanced design of a singly reinforced rectangular section by limit state method depends on

a) Characteristic strength of concrete

b) Yield strength of steel

c) Modulus of elasticity of steel

d) Geometry of the section

A) (a) and (b)  (Ans)

b) (b) and (c)

c) (c) and (d)

d) (a) and (c)