You are asked to merge the corporate network with the network from a recently acquired company. Both
networks use the same private IPv4 address space (172.25.126.0/24). An SRX device serves as the gateway
for each network. Which solution allows you to merge the two networks without adjusting the current address
assignments?

A.
source NAT

B.
persistent NAT

C.
double NAT

D.
NAT444

Explanation:
http://class10e.com/juniper/what-should-you-do-to-meet-the-requirements/