Select correct statement regarding stable equilibrium.

A force $\overrightarrow{F}=(3\overrightarrow{i}+4\overrightarrow{j})N$ Acts on a particle moving in $x-y$ Plane. Starting from origin, the particle first goes along $x$-axis to the point $(4, 0)\mathrm{m}$ And then parallel to the $y$-axis to the point $(4, 3)\mathrm{m}.$ The total work done by the force on the particle is

Figure shows the variation of a force $F$ acting on a particle along $x$-axis. If the particle begins at rest at $x=0,$ what is the particle's coordinate when it again has zero speed?