What type of protection is NOT provided under alternate law?

The correct choice focuses on the functionality of the alternate law mode in the A320's flight control system. Alternate law is a mode that the aircraft's flight control system reverts to when certain faults occur in the primary flight controls. While alternate law retains some protections to enhance safety during flight, not all protections found in the normal law are present.

Load factor protection, speed protection, and bank angle protection are all measures that help manage the aircraft’s performance and ensure safe operating limits under alternate law. Load factor protection allows for limiting excessive load factors during turns and maneuvers, speed protection helps prevent the aircraft from exceeding its operating speeds, and bank angle protection aids in maintaining safe bank limits during flight.

On the other hand, yaw control, which refers to the aircraft's lateral stability and direction control around its vertical axis, is not maintained under alternate law. This aspect can be more critical and requires additional pilot input and manual handling. The loss of yaw control protection highlights that while alternate law maintains several safety features, it does not provide a safeguard for this particular aspect, which is essential for comprehensive flight stability.