Which Cisco IOS VPN technology leverages IPsec, mGRE, dynamic routing protocol, NHRP, and Cisco Express Forwarding?

Which Cisco IOS VPN technology leverages IPsec, mGRE, dynamic routing protocol, NHRP, and
Cisco Express Forwarding?

A.
FlexVPN

B.
DMVPN

C.
GETVPN

D.
Cisco Easy VPN