Where are slats located on an aircraft wing?

Slats are aerodynamic devices located on the leading edge of an aircraft wing. Their primary function is to enhance the performance of the wing by allowing it to operate efficiently at higher angles of attack and lower airspeeds. By extending from the leading edge during takeoff and landing, slats can help improve airflow over the wing's surface, delaying airflow separation and reducing the risk of stalling. This is particularly important during critical phases of flight, such as takeoff and landing, where maintaining lift is vital for safety and performance.

The other options presented do not align with the standard location of slats: they are either situated in areas that do not directly affect the wing’s aerodynamics or are unrelated to lift and control surfaces. The leading edge is specifically designed to incorporate these devices for optimal aerodynamic efficiency.