The standard used for encrypting and digitally signing e-mail that contains attachments is called:

A.
SET

B.
MIME

C.
S/MIME

D.
MSP

Explanation:
While MIME specifies how multimedia data and e-mail attachments are
transferred over the network, S/MIME provides a standard for encryption and digital
signatures of e-mail messages. S/MIME extended the capabilities of the MIME
standard.