The maximum deflection of a simply supported beam of span L, carrying an isolated load at the centre of the span ; flexural rigidity being EI, is

• A. <img src="/_files/images/civil-engineering/theory-of-structures/88-21-86-1.png">
• B. <img src="/_files/images/civil-engineering/theory-of-structures/88-21-86-2.png">
• C. <img src="/_files/images/civil-engineering/theory-of-structures/88-21-86-3.png">
• D. <img src="/_files/images/civil-engineering/theory-of-structures/88-21-86-4.png">