a) Identify and discuss A) and B) below. Include in your discussion each item's relationship to the adjoining box(es). Aggregate Plan A] B) Material requirements planning Purchase orders Materials plans Work orders b) Syarikat Bixby assembles fogging machines which are used to sanitize offices and retail outlets. Production wants to prepare a master production schedule for July 2020. Marketing has forecasted demand of 340 machines for July 2020. The forecast is 80 units for each of the first two periods and 60 units for each of the next three periods. The starting inventory is 20 units. The company uses a chase strategy for determining the production lot size, except there is an upper limit on the lot size of 70 units. Also, the desired safety stock is 10 units. Confirmed customer orders are as follows: Week Customer orders 82 80 4 5 40 20 Required: Prepare a master production schedule and determine the available-to-promise (ATP) quantities for each week. Note: The ATP quantities are based on maximum allowable production and do not include safety stock