Which default condition must be considered when an encrypted mobility tunnel is used between two Cisco WLCs?

Which default condition must be considered when an encrypted mobility tunnel is used between two Cisco WLCs?

A. The tunnel uses the IPses protocol for encapsulation. B. Control and data traffic encryption are enabled. C. The tunnel uses the EoIP protocol to transmit data traffic. D. TCP port 443 and UDP 21 are used.