The table below shows the lost time accident history of this supermarket over the past 3 years. Year 1 2* 3 Number of reported 12 4 3 accidents Number of hours worked 250 000 300 500 350 000 Days lost due to accidents 30 22 21 * The SM joined the supermarket at the beginning of year 2. The table below shows the lost time accident history of a different supermarket within the same retail organisation over the past 3 years. Year 1 2 3 Number of reported 9 8 7 accidents Number of hours worked 250 000 250 000 250 000 Days lost due to 20 accidents 18 16 (a) Calculate the accident frequency rate, based on 100 000 hours worked, for EACH of the years for BOTH supermarkets. Show your calculations at EACH step. (b) What conclusions are the retail organisation's Board of Directors likely to make when comparing the accident data of the two supermarkets? (c) What are the possible limitations of this data