Chris plots a point on the control chart and notices that it lies just outside the upper control limit$.$ Which of the following statements is$$ best?

A$.$

The process should have been stopped or adjusted when the previous sample was taken in order to prevent any defective items from being produced.

B$.$

The process may actually be in control.

C$.$

If a larger sample size had been$$ used, the process would definitely have been in control.

D$.$

All of the items in the sample are defective.