Match the following Control Charts Rules and$/$or patterns with the corresponding correct statement of process conditions.

$$ Represent smaller shifts that are maintained over time.

Represent sudden, large shifts from the average. These are often $-$ a onetime occurrence of a special cause

Occurs when you have multiple processes but you are including all the processes in a subgroup. This can lead to the data "hugging" the average $-$ all the points in zone $C$ with no points beyond zone $C.$

Represents a process that is trending in one direction. For example, tool wearing could cause this type of trend.

This is nften ralled