Sunmart Inc. is a discount retailer with 1,000 stores across North America. Sunmart purchases bulk quantities of groceries and household goods, and then sells the goods directly to retail customers at a markup. Pharmedical Inc. is a pharmaceutical company that develops medications to prevent and treat diseases. Pharmedical develops, produces, and markets medications for purchase by patients of health-care professionals and customers of retail pharmacies and stores. Referring to each company's business model, answer the following: (a) Which company would have a higher gross profit percentage? would have a higher gross profit percentage. Which company would have a higher selling expense as a percentage of sales? would have a higher selling expense as a percentage of sales. (c) Which company would have a higher research and development expense as a percentage of sales? would have a higher research and development expense as a percentage of sales. (d) Which company would have higher net income