11 6 Study the graph Then answer Part A and Part B The line graph shows the number of diners at a food court between 1 P M and 6 P M Diners Visiting a Food Court Between 1RM and 6 PM Number of Diners 200 180 160 140 120 100 80 60 40 20 0 1PM 2PM 1 P M to 2 P M Part B 2 P M to 3 P M 4 P M to 5 P M 3 FM 5 P M to 6 P M Part A During which 1 hour interval was the decrease in the number of diners greatest 4PM 5 PM 6PM