Refer to the exhibit.
Which statement about this output is true?
A. Identity between endpoints is verified using a certificate authority.
B. The tunnel is not functional because NAT-T is not configured.
C. The remote device encrypts IKEv2 packets using key "282FE0B3B5C99A2B"
D. This router has sent the first packet to establish the FlexVPN tunnel.
I concur the correct answer is A.
If you check auth verify you see it is using RSA where if RSA is configured it means there has to be CA for identity verification.
Reference: https://www.cisco.com/c/en/us/support/docs/security-vpn/ipsec-negotiation-ike-protocols/117337-config-asa-router-00.html
A