A company decided to scan all of its salespersons' important work that existed only in paper form into a central computer database that could be easily accessed using portable computers, thereby saving salespersons the effort of lugging their paper files all over the country. The project was a dismal failure, however; salespersons rarely accessed the database and continued to rely on many paper files, which they had refused to tum over to the staff responsible for creating the database. Which one of the following, if true, most helps to account for the failure described above? ['All of the salespersons were required to attend a series of training sessions for the new database software even though many of them found the software easy to use even without training.', 'The number of staff required to create the database turned out to be larger than anticipated, and the company had to pay overtime wages to some of them.', 'Most of the salespersons already had portable computers before the new database was created.', 'The papers that the salespersons found most important all contained personal information about employees of client companies, which the salespersons did not want in a central database.']