Set out below are ratios for three different companies, each operating in a different sector. Ratio A B C Net profit margin 3.6% 9.7% 6.8% Asset turnover ratio 2.4 times 3.1 times 1.7 times N/A 44 days Days' sales in Inventory Days' sales in Receivables 18 days 2 days 12 days 26 days Current ratio 0.8 times 0.6 times 1.5 times Which firm is a: 1. a) Holiday tour operator, 2. b) Supermarket chain, 3. c) Food manufacturer. Provide a brief justification