The maximum stress intensity due to a suddenly applied load is x-times the stress intensity produced by the load of the same magnitude applied gradually. The value of x is

• A. 1
• B. 2
• C. 3
• D. <img src="/_files/images/civil-engineering/strength-of-materials/56-3.94-2.png">
• E. <img src="/_files/images/civil-engineering/strength-of-materials/132-6.125-1.png">