Two charged objects are held at rest a distance $d$ apart in space. Object A has mass $m$ and charge $q$. Object B has mass $2m$ and charge $2q$. When the objects are released simultaneously object A begins accelerating at a rate of $a$ away from the initial position of object B due to the electric field generated by object B.
Which statement below correctly describes the initial acceleration of object B in the reference frame of its initial position due only to the electric field generated by object A? (In other words, assume any gravitational interaction between the objects is negligible).