could someone please help out

Question 22 Smith Petroleum has monitored tanker deliveries over the past five weeks and has experimented with three different methods. The following information is provided Actual Method 1 Method 2 Method 3 Week Demand Forecast Forecast Forecast 1 48 52 42 46 2 38 44 40 50 3 54 46 46 42 4 4 50 58 44 60 5 62 64 56 50 Measured by the mean absolute deviation (MAD), which of the three forecasting methods provides the highest forecast accuracy over the five weeks? Method 1 Method 2 Method 3 Method 1 and 2 are equally good Method 1 and 3 are equally good