Which three statements about the keying methods used by MAC Sec are true (Choose Three)
A. MKA is implemented as an EAPoL packet exchange
B. SAP is enabled by default for Cisco TrustSec in manual configuration mode.
C. SAP is supported on SPAN destination ports
D. Key management for host-to-switch and switch-to-switch MACSec sessions is provided by MKA
E. SAP is not supported on switch SVIs .
F. A valid mode for SAP is NULL