Please help me answer Critical Stress Element

a$.$ On the 'Cross$-$Section at A$\text{'}$ circle, draw an arrow to the critical stress element $($i$.$e$.$ max shear stress$)$ on the shoulder at A$,$ and sketch the magnitude and direction of the normal and shear stress components acting on this critical stress element. Below are values at section A that may be helpful. The material is ductile, and therefore stress concentrations at section A can be neglected. $[12$ pts$]$

$I_z=I_y=$

$J=0\mathrm{.}1C$

Area $=$

$E=30,$

${}_A=n$

$\frac{n_1}{\text{I}}-0\mathrm{.}05$