Wilke Environmental Group, a large organization that provides environmental services such as water quality monitoring and geological surveys to businesses and government agencies across the nation, seeks your help in designing its corporate WAN. It plans to completely replace its legacy hodgepodge of connections and services. Headquartered in Baton Rouge, Louisiana, the firm also has large, regional offices in Seattle, Phoenix, and Boston. These offices need a way to exchange e-mail and large files. About half of the firms 300 engineers and technical specialists work from home at least part of the time and need fast and reliable connections to their regional offices. The IT manager makes it clear that the environmental services business is booming and so you should not necessarily seek economical solutions. Describe at least two suitable WAN technologies for each of Wilkes two connectivity situations: office-to-office and home-to-office. Which options do you recommend above all and why?