If l is the span of a light suspension bridge whose each cable carries total weight (w) and the central dip is y, the horizontal pull at each support, is

• A. <img src="/_files/images/civil-engineering/applied-mechanics/114-5.195-1.png">
• B. <img src="/_files/images/civil-engineering/applied-mechanics/114-5.195-2.png">
• C. <img src="/_files/images/civil-engineering/applied-mechanics/114-5.195-3.png">
• D. <i>wl</i>
• E. .