I would think it's okay to move them. It's fine if the person has something supporting him/her in some type of way.
Both stimulants and depressants can be D. all of the above.
Both stimulants and depressants are addictive drugs; while stimulants generally speed up the body's processes, depressants slow them down. These drugs can be abused and have fatal consequences.
The best option would be A.
If he attends an outpatient program within the community that supports him and is a reasonable cost then he will be able to have the support of his parents and the community, it won't be too much of a strain financially for his parents and he will be away from any temptation.