The value of b in the equation of design bending strength of laterally unsupported beams for semi-compact sections is

The value of b in the equation of design bending strength of laterall

1.	The value of _b in the equation of design bending strength of laterally unsupported beams for semi-compact sections is
A.	Z<sub>e</sub>/Z<sub>p</sub>
B.	Z<sub>e</sub>Z<sub>p</sub>
C.	Z<sub>p</sub>/Z<sub>e</sub>
D.	Z<sub>p</sub>
Answer» B. Z<sub>e</sub>Z<sub>p</sub>