The diagram depicts an insulating rod with equal and opposite point charges at each end. An electric field of strength $E$ acts on the rod downward. Which row is correct?
- Aresultant force zero; resultant torque clockwise
- Bresultant force downwards; resultant torque clockwise
- Cresultant force zero; resultant torque anti-clockwise
- Dresultant force downwards; resultant torque anti-clockwise