A Major Plank in the Legalizer's Platform Is That Drug

A major plank in the legalizer's platform is that drug use/abuse:

A) will not rise significantly under legalization.
B) will rise significantly under legalization, but it will be worth it.
C) will actually decline under legalization.
D) could rise significantly, decline significantly, or remain stable, under legalization; no one knows, but let's legalize anyway and "let the chips fall where they may."
E) none of the above.