4. [7 pointsllat least 250 words] Your friend Sam owns a small business and is good with hardware and engineering, and has built a delivery robot to deliver orders to customers around the neighbourhood. However, Sam is not highly familiar with AI algorithms and is wondering what algorithms the robot should use in order to successfully and efficiently deliver the packages to customers. Sam heard a bit about tabular state-based representations of actions and is starting to implement that. Do you think that is a promising approach? What advice would you give to Sam about which representations and algorithms to use, drawing from our course modules on search, CSPs, and planning? Again you should be specific about system design, but you do not need to provide information at the level of pseudocode. You should discuss both the representation of the problem as well as how to find a solution. You can assume for the sake of this question that the robot always knows its current location with certainty