A simply supported uniform rectangular bar breadth b, depth d and length L, carries an isolated load W at its mid-span. The same bar experiences an extension e under same tensile load. The ratio of the maximum deflection to the elongation, is

• A. <img src="/_files/images/civil-engineering/theory-of-structures/89-21-92-1.png">
• B. <img src="/_files/images/civil-engineering/theory-of-structures/89-21-92-2.png">
• C. <img src="/_files/images/civil-engineering/theory-of-structures/89-21-92-3.png">
• D. <img src="/_files/images/civil-engineering/theory-of-structures/89-21-92-4.png">