Celina is the manager at the local supermarket. New employee schedules are posted each week. When employees are unable to work their shift, they indicate it on the schedule and other employees can fill in. Often, employees need to check the schedules when they are away from work, so Celina needs a more efficient way for her employees to share information. Kayla is taking a business class and told Celina about a great tool that will serve their needs. What was the technology tool Kayla told Celina about?
A.) e-mail
B.) wikis
C.) firewalls
D.) blogs