A steel rod $($E$=200$GPa$)$ is subjected to the load shown, where P $=2650$ kN$.$A gap a $=1\mathrm{.}50$ mm exists before the load is applied. The elongated rod contacts the top surface at C$\text{'}.$ Assume the mass of the rod is negligible. The values for the figure below are d $=0\mathrm{.}500$ m$,$ e $=0\mathrm{.}400$ m$,$j $=56\mathrm{.}0$ mm$,$ and g $=41\mathrm{.}0$ mm$.$

A$)$ Find the magnitude of the reaction force FC$$ in the rod after the load P has been applied.

B$)$ Determine the magnitude of the reaction force FA in the steel rod after the load has been applied. Assume section AB of the rod is in tension.

C$)$ Determine the total deflection C$/$A in the rod when the upper wall is removed.