Which statement is true regarding IPsec VPNs?

Which statement is true regarding IPsec VPNs?

A.
There are five phases of IKE negotiation.

B.
There are two phases of IKE negotiation.

C.
IPsec VPN tunnels are not supported on SRX Series devices.

D.
IPsec VPNs require a tunnel PIC in SRX Series devices.