A load of 30 kN is applied vertically downward at the free end of a cantilever of span 5 m. If the elastic modulus of the cantilever is 30 GPa and the section has a width of 0.3 m and a depth of 0.6 m, then, the elastic deflection (in mm) is ______

• A. 7.65 to 7.75
• B. 4.65 to 4.75
• C. 3.65 to 6.75
• D. 2.65 to 7.75