Final answer:
The student's question relates to Geography and involves finding the optimal route for a bus tour, which is an example of the Traveling Salesman Problem.
Step-by-step explanation:
The question you’ve asked falls under the concept of Geography, specifically focusing on travel and itinerary planning. It seems that you're tasked with optimizing a bus tour route, which is akin to solving a Traveling Salesman Problem (TSP). The TSP is a famous logistical problem that seeks the shortest possible route to visit a number of cities and return to the origin city.
Although you’ve mentioned an Excel file named “Traveling Salesman” on BB (presumably Blackboard), which suggests that you may be using computational methods or algorithms to find the optimal solution, without access to the specific distances or software used, it is not possible to give an exact minimum length of the tour.
However, in general, to solve a TSP, you would use mathematical algorithms or heuristics to systematically explore different permutations of the tour to find the one with the smallest total distance.