The ratio of the length and depth of a simply supported rectangular beam which experiences maximum bending stress equal to tensile stress, due to same load at its mid span, is

• A. <img src="/_files/images/civil-engineering/theory-of-structures/89-21-94-3.png">
• B. <img src="/_files/images/civil-engineering/theory-of-structures/88-21-88-1.png">
• C. <img src="/_files/images/civil-engineering/theory-of-structures/89-21-94-2.png">
• D. <img src="/_files/images/civil-engineering/theory-of-structures/89-21-94-4.png">