What Is A Level D Simulator?

[AHRS]

Whilst I understand you can perform Base training on a Level D and thus operate your first flight on line training, is it due to the realism in graphic displays or performance realism that defines it?

Which of these (if any ) qualifies as a Level D? (No MsFS answers please.we know about the 767 level D thank you!):

CONCORDE

L1011-200 such as Redifusion (ex Gulf Air)

Trident 3C ex BEA

Hawker 800

Gulfstream GIV

Thanks