If S is the shear force at a section of an I-joist, having web depth d and moment of inertia I about its neutral axis, the difference between the maximum and mean shear stresses in the web is,

If S is the shear force at a section of an I-joist, having web depth d

1.	If S is the shear force at a section of an I-joist, having web depth d and moment of inertia I about its neutral axis, the difference between the maximum and mean shear stresses in the web is,
A.	<img src="/_files/images/civil-engineering/strength-of-materials/141-6.233-1.png">
B.	<img src="/_files/images/civil-engineering/strength-of-materials/141-6.233-2.png">
C.	<img src="/_files/images/civil-engineering/strength-of-materials/141-6.233-3.png">
D.	<img src="/_files/images/civil-engineering/strength-of-materials/141-6.233-4.png">
Answer» E.