Which wing configuration can improve lateral stability?

The wing configuration that can improve lateral stability is dihedral. When a wing is dihedral, it is angled upwards relative to the horizontal plane. This design contributes positively to a plane's lateral stability by enhancing the roll response.

In flight, if an aircraft begins to roll to one side, the wing that rises experiences an increase in lift due to the increased angle of attack. Conversely, the wing that drops will experience decreased lift. This difference in lift creates a natural corrective moment that helps the aircraft return to level flight. This effect is particularly beneficial in maintaining stable flight, especially during turbulent conditions or when an unexpected disturbance occurs.

Dihedral is a common design feature in many aircraft precisely for this reason, as it contributes to the overall safety and handling characteristics by providing inherent lateral stability.