Please answer ASAP

Compare four mutually exclusive cost alternatives, A, B, C, and D (total costs increase from A to D). According to the B/C ratio, which alternative should be selected? B /C ratios are given in the table. Comparison AB/C ratio A versus B 0.7 B versus C 1.5 C versus D 1.2 A versus C 1.1 A versus D 0.3 B versus D 1.8 O Alternative A O Alternative C Alternative B O Alternative D