Question ATPL - Airline Transport Pilot license - Mass and Balance

26 - ATPL - The Maximum Certificated Taxi (or Ramp) Mass is that mass to which an aeroplane may be loaded prior to engine start. It is:

A value which varies with airfield temperature and altitude. Corrections are listed in the Flight Manual.

A value which varies only with airfield altitude. Standard corrections are listed in the Flight Manual.

A fixed value which is listed in the Flight Manual.

A value which is only affected by the outside air temperature. Corrections are calculated from data given in the Flight Manual.