Assume a process's acceptable defect rate is (1%, 3%], and the following table shows detailed sample data from the past two days. Day 1 Day 2 1 1 # of defective product total # of examined product 50 70 A. Only the process in day 1 is in control. B. Only the process in day 2 is in control. C. Both the processes in day 1 and day 2 are in control. D. Both the processes in day 1 and day 2 are out of control. B CD