Which two network addresses could appear in the remote proxy-id for the SSG 550 during the IKE phase

See the Exhibit:

Which two network addresses could appear in the remote proxy-id for the SSG 550 during the IKE phase two exchange? (Choose two.)

A.
10.0.0.0/8

B.
1.1.1.250

C.
20.0.0.0/8

D.
10.0.0.5/32