A shaft is subjected to a maximum a maximum torque of 10 kN-m and bending moment of 8 kN-m at a particular section. If the allowable equivalent stress in simple tension is 160 MN/m, the diameter of the shaft according to strain energy theory is [take = 0.25]. (A) 49.95 mm (C) 96.24 mm (B) 89.46 mm (D) 75.25 mm