Hewlett-Packard recently shifted its entire U.S. sales force into home offices and saved US$10 million in staff salaries and office rent despite spending US$8,000 to equip each home office with a notebook computer, fax/copier, cellular phone, two phone lines and office furniture. Such decreased selling costs are among the benefits of __________.
a) personal selling
b) direct marketing
c) sales force automation
d) decentralization
e) account management policies
Answer: c