It was my understanding that quitter + possessive adjective means quitting permanently whereas quitter + direct article means leaving the place for a day.
In the quiz the options are
Ils partent leur travail à 19h. - incorrect
Ils quittent leur travail à 19h. - correct
however, in the quick lesson it says:
En général, nous quittons le bureau à 18h.We usually leave the office at 6pm.
Il a enfin quitté son travail ! Tant mieux pour lui !He finally quit his job! Good for him!
How does one discern the meaning of quitter between quitting and leaving?