If bending moment on point B in horizontal plate is M and in vertical plane is m, then the net bending moment at point B is?

If bending moment on point B in horizontal plate is M and in vertical

1.	If bending moment on point B in horizontal plate is M and in vertical plane is m, then the net bending moment at point B is?
A.	m
B.	m
C.	m+m
D.	âˆšmÂ²+mÂ²
Answer» E.