The double riveted joint with two cover plates for boiler shell is 1.5 m in diameter subjected to steam pressure of 1 MPa. If the joint efficiency is 75%, allowable tensile stress in the plate is 83 MN/m2, compressive stress is 138 MN/m2 and shear stress in the rivet is 55 MN/m2, the diameter of rivet hole will be nearly

• A. 8 mm
• B. 22 mm
• C. 36 mm
• D. 52 mm