Correct option is B
1. Diagonal stiffeners are specifically designed to counteract the effects of shear forces, especially diagonal shear stresses, and provide reinforcement to webs in such scenarios.
2. These stiffeners are placed diagonally to the web and are effective in cases where the web experiences shear buckling or needs additional support due to concentrated loads.
3. While bearing stiffeners resist localized bearing forces and are positioned near concentrated loads, diagonal stiffeners are used for scenarios involving shear stresses in addition to bearing.
