Answer:
The main conflict is that the two men can't stand the smell inside the freight car but can't stand the cold outside either. Hope this helps! =)
Ummmm yes???????????????????????????????
Maybe try to make a metaphor or a simile with something that's yellow?
Or like the yellow brick road and the "path" we're supposed to be going in?
Maybe refer to what yellow is a symbol of. Yellow refers to happiness or joy.