L The following structure has member properties E, I, A. P C M ζω AB = bar B<, BD-frame CD-beam C = pin joint B-maid joint A L D τίτη AD= pin supports slider joint in middle of BC A) CLEARLY draw and number the degrees of freedom (DOFS) on the structure required for a complete solution. B) Indicate the size of each element matrix to be used. Indicate how element level DOF numbers correspond to structural level DOF numbers for each element. You DO NOT need to indicate the value of any stiffness coefficients. C) Write the fundamental equations of equilibrium in matrix form. Fill in all known and unknown values, except DO NOT fill in any values for stiffness coefficients. Within [K], block in where each element stiffness matrix will be placed. D) Compute kij for the structure, where i = rotation at joint B and j = vertical displacement at joint B.