According to Herber (2001), what are the three stages for defining a tourist route?
Determining the necessary resources for the tourist development of the geographic area
Investigating if the demand has accepted the tourist product
Interpreting the data received from travelers to adapt the offer to their needs
The third stage should be developed simultaneously with the first two stages
The tourist route must be based on a specific activity that distinguishes it from other similar routes
The creation of the route must have a common cohesion nexus
a) Only the first two stages are necessary
b) Only the second and third stages are necessary
c) All three stages are necessary