A、BECAusE low-tAr CigArEttEs ArE ChEApEr.
B、BECAusE low-tAr CigArEttEs rEDuCE thE risk to thEir hEAlth.
C．BECAusE CigArEttE mAnuFACturErs hAvE proDuCED A lot oF low-tAr CigArEttEs.
D．BECAusE thE govErnmEnt ADvisED pEoplE to Buy low-tAr CigArEttEs.