Marc has started drinking whenever he is upset or stressed. when his friends ask him how much he drinks, he lies and makes excuses. he sees alcohol as an escape from his everyday problems. which stage of alcoholism is marc most likely in?

They are probably stage three, because when you are stage three, There are three symtoms, which are Isolation/ Legal Problems/ Depression. Isolation is one that he experiences, so when someone asks him how much he drink, he does not reply, or he lies.