The penis because the testys are nice
Im pretty sure it’s 5 years
Reusing or sharing needles, really anything that can be spread through blood and drugs.. i hope this helps and sorry its so brief.
A) For it does not require a life long commitment, and it is not C) because it can be any substance not just tobacco!
Thus your answer is A) gradually but completely withdrawing substances from use !
Have a happy life !
:D <span />