scastile
contestada

The term "junk e-mails" refers to ______________.
a. unsolicited e-mail offers from people you don't know and with whom you have no dealings
b. e-mails that are frivolous, such as jokes passed among colleagues.
c. e-mails that are ostensibly of a business nature but that are ineffective and accomplish no useful purpose.
d. e-mails that have already been red but that have not been deleted and so remain in the system.