A stiffness matrix is to be generated for beam AB as a horizontal flexural member. As per the method adopted for calculation of stiffness matrix, if end A is given translational displacement in a vertically upward direction, the end forces generated at the end ‘B’ are

• A. No force at end B
• B. -12EI/L3 vertical force and 6EI/L2moment
• C. -6EI/L3 vertical force and 2EI/L moment
• D. -6EI/L2 vertical force and 4EI/L moment