Select the correct option to test your answer: A $$\frac{1}{2}\sqrt {{{\text{M}}^2} + {{\text{T}}^2}} $$ B $$\sqrt {{{\text{M}}^2} + {{\text{T}}^2}} $$ C $$\frac{1}{2}\left( {{\text{M}} + \sqrt {{{\text{M}}^2} + {{\text{T}}^2}} } \right)$$ D $${\text{M}} + \sqrt {{{\text{M}}^2} + {{\text{T}}^2}} $$ Correct Answer: Option B ($$\sqrt {{{\text{M}}^2} + {{\text{T}}^2}} $$) Verified correct option for Mechanical Engineering (Machine Design).