Not all modes work for each route. For example, Commuter Rail couldn't be placed on University Avenue - that option is only appropriate to run on exisiting freight train tracks. Commuter Rail Trains running on current freight rail tracks, powered by a locomotive. Bus Rapid Transit BRT and busways have buses running on a separate, dedicated right of way or on city streets but separated from other traffic. Light Rail Transit Electric trains running on tracks, the trains can run on city streets or they can be separated from city streets and traffic.
Trains can be relatively short, with two or three cars.
Option A would make more frequent stops, similar to traditional bus service. Option B would have less frequent stops, with perhaps a mile between some stations. 50 average 50 max.