Which of the following are primary reasons to sign emails with digital certificates?

A company requires that all users enroll in the corporate PKI structure and digitally sign all emails. Which
of the following are primary reasons to sign emails with digital certificates? (Select TWO)

A.
To establish non-repudiation

B.
To ensure integrity

C.
To prevent SPAM

D.
To establish data loss prevention

E.
To protect confidentiality

F.
To establish transport encryption