I would try to find someone that he feels comfortable sharing his feeling with. You can also tell him that you're always going to be there for him, and if he ever needs someone to talk to he can talk to you.
I could recommend Brian find someone he feels comfortable talking to about his feelings example another trusted friend or a professional. Or find close relative to have family members speak to him
The answer should be B because people with problems that have to do with drugs and alcohol don’t usually like to get help but their family cares about them and wants them to get help for their own well being.