Two connected charges of +q and -q respectively are a fixed distance AB apart in a non uniform electric field whose lines of force are shown in the figure. The resultant effect on the two charges is

a torque in the plane of the paper and no resultant force a resultant force in the plane of the paper and no torque a torque normal to the plane of the paper and no resultant force a torque normal to the plane of the paper and a resultant force in the plane of the paper

a torque normal to the plane of the paper and a resultant force in the plane of the paper

The electric field line show that there is negative charge present nearby the positive charge. Now, F1​>F2​ because of non-uniform electric field. $\therefore$ there will  be a force in the plane of paper. Next there will be a torque  to align the charge. i.e. to move $+ve$ charge downwards and $-ve$ charge upward which will result of a torque normal to the plane of the surface.