Consider a manufacturing process depicted by the following flowchart. flowchart Station A has 3 parallel operators, A1, A2, and A3. Station C has 2 parallel operators, C1 and C2. Each unit only needs to be processed by one of the operators A1, A2 and A3. After being processed at Station B (with a single operator), a unit then needs to be processed by either C1 or C2. The process time of the individual operators are given as follows. Each of A1, A2, and A3: 15 minutes B: 12 minutes Either of C1 and C2: 4 minutes. It is observed that the utilization of Station B is 96%. What is the throughput rate (in units/hour) of this process?