This document is asking how to calculate ratios A and B using Du Pont analysis and provides financial statements for BestCare HMO. Du Pont analysis breaks return on equity (ROE) into three components: profit margin, asset turnover, and equity multiplier. The document shows an example calculation for BestCare HMO where net income is divided by net sales for profit margin, net sales divided by total assets for asset turnover, and total assets divided by shareholder equity for equity multiplier, resulting in an ROE of 25.5%.