Final answer:
The Flight Mode Annunciator (FMA) displays active autopilot modes, not current altitude, engine temperature, or aircraft speed.
Step-by-step explanation:
The Flight Mode Annunciator (FMA) displays information regarding the active autopilot modes, flight director, and auto-throttle status of an aircraft. It provides the pilots with critical information about the automation modes that are currently engaged and how the aircraft's computers are controlling the flight. The FMA does not display the current altitude, engine temperature, or aircraft speed directly. These specific readings are shown on other instruments in the cockpit, such as the Primary Flight Display (PFD) or Multi-Function Display (MFD).