$12).$ If a $2$ ft long prismatic solid circular Aluminum rod with a diameter of $0\mathrm{.}5$ inches is subjected to an axial load of $3$ kips, what is most nearly the axial deformation of the rod in inches?a$.0\mathrm{.}5$b$.0\mathrm{.}0031$ c$.0\mathrm{.}037$ d$.0$