Correct option is C
BCC (Blind Carbon Copy) is used in emails to send a copy of the message to additional recipients without revealing their email addresses to the primary and other secondary recipients.
It helps maintain the privacy of the recipients as their addresses are hidden from each other.
CC (Carbon Copy), in contrast, makes all recipients' addresses visible to each other.
Bulleted carbon copy, Best carbon copy, and Blank carbon copy are not standard terms in email communication.
BCC is often used for mass email distributions to avoid sharing email addresses with everyone on the list.