If A is the sectional area of a prestressed rectangular beam provided with a tendon prestressed by a force P through its centroidal longitudinal axis, the compressive stress in concrete, is

• A. <img src="/_files/images/civil-engineering/rcc-structures-design/86-13-202-1.png">
• B. <img src="/_files/images/civil-engineering/rcc-structures-design/86-13-202-2.png">
• C. <img src="/_files/images/civil-engineering/rcc-structures-design/86-13-202-3.png">
• D. <img src="/_files/images/civil-engineering/rcc-structures-design/86-13-202-4.png">
• E. <img src="/_files/images/civil-engineering/rcc-structures-design/86-13-202-5.png">