When landing on a runway near a departing large aircraft, what should you observe?

When landing on a runway near a departing large aircraft, it is crucial to observe the area where the large airplane rotates. This is the moment when the aircraft transitions from ground to flight, and the wake turbulence generated during this phase is most pronounced. Large aircraft create significant vortices as they become airborne, which can affect smaller aircraft following them closely in flight.

By focusing on the rotation point, pilots can determine the potential for wake turbulence and avoid flying through it. Wake turbulence can lead to loss of control or sudden altitude changes, making it essential for pilots to be aware of the separation needed from large aircraft during takeoff and landing.

In contrast, the other options do not provide relevant details about wake turbulence and its timing. For instance, observing where the airplane took off, is landing, or is parked does not aid in identifying turbulence hazards during your approach, since those phases do not relate directly to the turbulence created during the aircraft's rotation.