BCC stands for Blind Carbon Copy. A copy of the email is also sent to any address that appears in this field, but those addresses do not appear in the message header of the sent email. Hence, recipients of the 'To' and 'CC' fields will not know that a copy of the message was sent to the recipients in the BCC field. Hope I helped u.. Plzz mark as the BRAINLIEST answer if wishing..
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Cc stands for carbon copy in an email. This means that the header will receive a copy of the message.Cc will appear in the header of the received message.

Bcc stands blind carbon copy. In Bcc the email address of the recipients specified in this field will not appear in the received message header and the recipients in the To or Cc fields will not know that a copy sent to these address.