Draw the influence lines for: reactions $($a$)B_y$ and $($b$)C_y,$ and the $($c$)$ shcaring force $V_{1-1}$ and

$($d$)$ bending moment $M_{1-1}$ at section $1-1(4$ influence lines in total$).$ Use the method of your

preference $($quantitative or qualitative$)$ to solve the problem. Make sure to label the values for

local maximums and minimums and demonstrate your procedure.