A.Because cannabis proved to be more harmful than tobacco.B.Because canabis is already so widespread.C.Because it is not known whether cannabis may be harmful or not.D.Because canabis is proved to be positively harmful.
A.Because cannabis proved to be more harmful than tobacco.
B.Because canabis is already so widespread.
C.Because it is not known whether cannabis may be harmful or not.
D.Because canabis is proved to be positively harmful.