When email authentication is configured on Cisco ESA, which two key types should be selected on the signing profile? (Choose two.) 

Answer options:

A. DKIM
B. Public Keys
C. Domain Keys
D. Symmetric Keys
E. Private Keys

AC

Reference: https://www.cisco.com/c/en/us/support/docs/security/email-security-appliance/213939-esa-configure-dkim-signing.html