Long-run, these defects should be monitored with P-charts.
What are P-charts?
P-charts are a type of control chart used to monitor the proportion of defective items in a sample over time. They are used to monitor the consistency of a process over time and identify any shifts in the process that may indicate a quality issue. P-charts can be used for both constant sample size and variable sample size data.
By monitoring the proportion of defects in the long-run, it enables the process to be quickly and effectively adjusted if the proportion of defects begins to increase.
Hence, the correct option is Option A.
To know more about P-charts,
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