Reducing the max buffer size of a workstation would be an example of

Exploiting the bottleneck $.$

Decreasing the standard deviation of a workstation would be an example of Subordinating the bottleneck.

Increasing the capacity at a workstation would be an example of Determining that workstation $7$ is where inventory is building up would be an example of

Elevating the bottleneck

Identifying the bottleneck

Subordinating the bottleneck

Exploiting the bottleneck