The stiffness factor for a prismatic beam of length L and moment of inertia I, is

• A. <img src="/_files/images/civil-engineering/strength-of-materials/134-6.158-1.png">
• B. <img src="/_files/images/civil-engineering/strength-of-materials/134-6.158-2.png">
• C. <img src="/_files/images/civil-engineering/strength-of-materials/134-6.158-3.png">
• D. <img src="/_files/images/civil-engineering/strength-of-materials/134-6.158-4.png">
• E. <img src="/_files/images/civil-engineering/strength-of-materials/134-6.158-5.png">