which IP addresses would be assigned to the interfaces with point-to-point PVCs?

In the Frame Relay network,

which IP addresses would be assigned to the interfaces with point-to-point PVCs?
A . DLCI 16 192.168.10.1/24
DLCI 17 192.168.10.1/24
DLCI 99 192.168.10.2/24
DLCI 28 192.168.10.3/24
B . DLCI 16 192.168.10.1 /24
DLCI 17 192.168.11.1/24
DLCI 99 192.168.12.1/24
DLCI 28 192.168.13.1/24
C . DLCI 16 192.168.10.1/24
DLCI 17 192.168.11.1/24
DLCI 99 192.168.10.2/24
DLCI 28 192.168.11.2/24
D . DLCI 16 192.168.10.1/24
DLCI 17 192.168.10.2/24
DLCI 99 192.168.10.3/24
DLCI 28 192.168.10.4/24

View Answer

Answer: C

Explanation:

DLCI 16 and DLCI 19 need to act like a point-to-point link and will therefore need to be on the same network as will DLCI 17 and DLCI 28. With this information we can see that option "B" is the only option that has the corresponding DLCI’s on the same network based on the ip addresses and subnetmask.

Option "D" is incorrect because, this would put the same network on both interfaces of the R2 router. Option "A" is similar.