Correct option is C
Load carrying stiffeners: To prevent local buckling of the web due to concentrated loading. These stiffeners are providing where plate girder ends restrained against torsion.
Bearing stiffeners: To prevent local crushing of the web due to concentrated loading. The bearing stiffeners are designed as columns with the length of web 20 times the thickness of web on both sides.
Diagonal stiffeners: To provide local reinforcement to a web under shear and bearing.
Intermediate transverse web stiffeners: To improve the buckling strength of a slender web due to shear.