Short message service (SMS) is different from multimedia messaging service (MMS) in that:

a. SMS allows 960-character text messages, while MMS allows 160-character text messages.
b. SMS is designed specifically for viewing and navigation on mobile devices, while MMS does not have such features.
c. SMS does not allow the attachment of images, videos, and ringtones to text messages, while MMS allows.
d. SMS does not require Internet, while MMS requires Internet for functioning.

ANSWER: c

SMS is 160-character text messages sent to and from cell phones. MMS allows the attachment of images, videos, ringtones, and other multimedia to text messages.