What should you lead with upon activation of the stick shakers when entering a spin?

When a spin is entered, it is crucial to manage the aircraft’s control surfaces effectively. Leading with rudder input in the opposite direction of the last turn is the appropriate response. This action helps to counteract the yaw motion that is inherent in a spin. The primary goal during a spin recovery is to perform a coordinated response to regain control over the aircraft.

When the stick shakers activate, they signal an impending stall, which often corresponds with a spin condition. By applying rudder in the opposite direction of the last turn, you can disrupt the spin's rotational motion and begin to correct the flight path. This technique aligns with standard spin recovery procedures, promoting a safer and more effective recovery while restoring controlled flight.

The other options, while related to control movements, do not correctly address the immediate needs during a spin recovery. Counteracting a spin effectively requires precise control of the rudder, and leading with an opposing rudder input is essential for regaining control and preventing further loss of control. Thus, understanding the mechanics of spin dynamics and appropriate control inputs is crucial for safe flight operations.