For a rectangular beam with cross-section having width b and depth d, and loaded as shown in Figure, choose the ratio of maximum shear stress to maximum bending stress
1
\(\frac{d}{{4a}}\)
2
\(\frac{d}{{2a}}\)
3
\(\frac{b}{{4a}}\)
4
\(\frac{b}{{2a}}\)