Consider two firms: one operating a jewelry chain (Tiffany's) and the other a grocery chain (Whole Foods). Which of the following options best describes the comparison between their gross profit margin and inventory conversion ratio (i.e., the number of times per year that inventory turns over)? a. Gross profit margin Inventory conversion period Jewelry Low Equal Grocery Low Equal b. Gross profit margin Inventory conversion period Jewelry High Low Grocery Low High c. Gross profit margin Inventory conversion period Jewelry Equal Low Grocery Equal High d. Gross profit margin Inventory conversion period Jewelry High High Grocery Low Low e. Gross profit margin Inventory conversion period Jewelry High Low Grocery High Low