Indicate whether each of the following companies are primarily a service, merchandise, or manufacturing business. If you are unfamiliar with the company, use the Internet to locate the company's home page or use the finance Web site of Yahoo.1. Alcoa Inc. 2. Boeing 3. Caterpillar 4. Citigroup Inc. 5. CVS 6. Dow Chemical Company 7. eBay Inc. 8. FedEx 9. Ford Motor Company 10. Gap Inc. 11. H&R Block 12. Hilton Hospitality, Inc. 13. Procter & Gamble 14. SunTrust 15. WalMart Stores, Inc.