A simply supported beam carries a varying load from zero at one end and w at the other end. If the length of the beam is a, the shear force will be zero at a distance x from least loaded point where x is

• A. <img src="/_files/images/civil-engineering/theory-of-structures/84-21-42-1.png">
• B. <img src="/_files/images/civil-engineering/theory-of-structures/84-21-42-2.png">
• C. <img src="/_files/images/civil-engineering/theory-of-structures/84-21-42-3.png">
• D. <img src="/_files/images/civil-engineering/theory-of-structures/84-21-42-4.png">