Which aspect is NOT part of the flight control system's automated protections?

The flight control system's automated protections are designed to enhance safety by preventing certain flight scenarios that could compromise the aircraft's performance. The protections include functions to avoid overspeed situations, prevent stalls, and limit excessive bank angles during maneuvers.

Fuel efficiency, however, does not fall under the category of automated protections. While fuel efficiency is a crucial consideration in aircraft operations, it is not a protection feature aimed at preventing dangerous flight situations. Instead, it is more aligned with operational efficiency and management rather than safety protocols associated with the flight control system. Therefore, the correct choice accurately identifies the aspect that is not part of the automated protections provided by the flight control system in the A320.