"Responsible Individuals Should Have the Right to Engage in Drug

"Responsible individuals should have the right to engage in drug use as long as no substantial, involuntary harm is imposed on a third party." This is an example of:

A) the libertarian principle that favors the legalization of drugs.
B) the relative paternalistic principle that favors the legalization of drugs.
C) a rationalization used by users of drugs in order to justify their actions.
D) an irresponsible argument for drug use often put forth by the press and politicians who envision the generation of substantial governmental revenues as a result of legalization.