A Drive Shaft Resists Torsional Shear Stress Of $\tau_{x y}=40 \mathrm{MPa}$

A drive shaft resists torsional shear stress of $\tau_{x y}=40 \mathrm{MPa}$ and axial compressive stress $\sigma_{x}=-70 \mathrm{MPa}$ . One principal normal stress is
Known to be 38 MPa (tensile). The stress $\sigma_{y}$ is approximately: (A) $23 \mathrm{MPa}$
(B) $35 \mathrm{MPa}$
(C) $62 \mathrm{MPa}$
(D) $75 \mathrm{MPa}$