20. [H] You are an auditor for a oompan},r whose four executives make regular business trips on four routes and you suspect that at least one of the executives has been overstating her expenses. You don't know how much it costs to travel each route, but you know that it is the same for all the executives. You know the number of trips each executive made on each route in a certain period and you know the total expenses claimed by each executive for this period. If the numbers of trips are in shown in the table below, do you have suicient information to be sure that someone is cheating? State your reasoning clearly. Executive A Executive B Executive C Executive D