How do you determine the center line and control limits for variables charts?

Group of answer choices

Estimate what the mean of the process will be from $3$ samples, then place the control limits so that what you produce should meet customer requirements.

Use the formulas in Tables $6\mathrm{.}9$ and $6\mathrm{.}10,$ and the Appendix Table VI

Place the center line at the customer specifications and the control limits equal to the tolerance limits provided by the customer.

The center line is always $0,$ and the control limits come from the customer tolerances.