A cargo transportation company is looking to take advantage of the publish/subscribe feature that WebSpher MQ V7.0 offers. They want share shipping information between regional offices and stores…

A cargo transportation company is looking to take advantage of the publish/subscribe feature that WebSpher MQ V7.0 offers. They want share shipping information between regional offices and stores within a region. Each regional office only needs to know the shipping information in the stores within its region. The headquarters office however, would like to see the shipping information from each region. The regional offices do not need to communicate with the headquarters offices to continue doing business with the stores. What is the best publish/subscribe topology to meet the company's needs?