According to von thunen’s model, which of the following would be produced most profitably on the ring farthest from the epicenter?
a. wheatb. sheepc. timberd. milk and butter

According to von thunen's model, the one that would be produced most profitably on the ring farthest from the epicenter would be : B. Sheep

Von Thunen's model divided earth's region into 4 parts depending on what product that would be most profitable. according to this model , the farthest from epicenter is most  suitable for Ranching/Animal Products

Hope this helps