How can characters advance the plot

Characters are the whole entire story. If there are no characters, then there usually is no story, are there answer choices for this?

gatsby's clothes have a symbolic meaning, as the use of colour and fabric in his clothing demonstrates his hope, dreams, and wealth. gatsby's clothing symbolizes his wealth through his torn shirt, his silver and gold suit, and his english shirts.

his occupation are

businessman yachtsman soldier entrepreneur bootlegger

if you could vote brainliest that would be absolutely phenomenal. : )

i believe the answer(s) would be all but external conflicts.