DNS query replied different IP

[Mr. Chow Wing Siu]

Dear all,

We would like to setup DNS query as such:

user A (192.168.0.1) -> query (www.fool.com) -> DNS answer (192.168.2.1)
user B (192.168.1.1) -> query (www.fool.com) -> DNS answer (192.168.3.1)
user C (0.0.0.0)     -> query (www.fool.com) -> DNS answer (192.168.4.1)

It's not a round robin reply.
We want to have one DNS to respond.  Do anyone know how to make it?

Thank you very much.

-- 
Johnson Chow