(Chapter 7: Process Interruptions) HAWKEYE Electronics Inc. manufactures electronic modules for appliance manufacturers. It involves three basic steps: Surface Mounting (SM), Pick-and-Place (P&P), and Reflow Soldering (RS). The table below lists the required processing times and setup times. There is unlimited space for buffer inventory between these steps. Process Step SM P&P RF Setup time (min) 42 32 None Processing time (min) 0.15 0.27 0.24 What is the approximate average inventory of "SM" if the batch size is 200 modules? Assume unlimited demand. 130 units 74 units 50 units O 65 units