Which Web Services pattern would you recommend they consider in building a scheme to accommodate this communication?

An investment company has purchased a number of small online business referral systems that
appeal to various niche demographics. The company wants to bring these networks together in
hopes of finding a broad, single theme and brand image for these groups before they can do that,
they need to get the users communicating with outside their current networks.
Which Web Services pattern would you recommend they consider in building a scheme to
accommodate this communication?

A.
Asynchronous Interactions

B.
PAOS Interactions

C.
Web Services Broker

D.
JMS Bridge