Which of the following is correct regarding interpreting control charts? Assume a control chart employs three standard deviation limits and one point is outside the control limits.

A) Management will not need to seek a cause for this "one-off" situation.
B) The chance that the process is stable is less than 1%.
C) The variation is probably a random variation in the process.
D) The process will be termed an "out-of-balance situation".