Question: Bob is formulating a problem that requires a robot to navigate to a goal region as quickly as possible. He specifies that the cost is

Bob is formulating a problem that requires a robot to navigate to a goal region as
quickly as possible. He specifies that the cost is -1 when an action is executed that
takes the agent into the goal region, and 0 in all other cases. When an agent runs
a search algorithm with this cost function, it finds a path to the goal region, but
it is not always the shortest path. Why is this the case? What change would you
suggest to ensure that the solution returned is also the shortest path?
Bob is formulating a problem that requires a

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