The state of stress at a point under plane stress condition is\({\sigma _{xx}} = 40~MPa,~{\sigma _{yy}} = 100~MPa,\;{\tau _{xy}} = 40~MPa\)The radius of the Mohr’s circle representing the given state of stress in MPa is

• A. 40
• B. 50
• C. 60
• D. 100