Which of the following firms from the same industry appears to have the most effective investment policy? A firm with net profit margin of 22% and total asset turnover of .9 A firm with net profit margin of 8% and total asset turnover of 2.3. A firm with net profit margin of 10% and total asset turnover of 1.6. A firm with net profit margin of 17% and total asset turnover of 9. A firm with net profit margin of 23% and total asset tumover of 5