Based on the fact that Polani was using the gas station, lights, and the fast-food restaurants, the factor used to help Ahmed recall the directions were landmarks.
Directing a person with landmarks is one of the best and most effective ways to direct people. This is because landmarks are easily noticeable and so can be used as markers to help a person to navigate across town and reach their destination.
Polani used the landmarks, the gas station, street lights, and the fast-food restaurant. Getting to each of these places is easy because it is noticeable so Polani used landmarks to help Ahmed.
Find out more on giving directions at https://brainly.com/question/28108225
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