A Practical Example of When the Theory of Constraints Would

A practical example of when the theory of constraints would not be an appropriate management technique to use would be:

A) Long lines at checkout stands.
B) Busy signals on Internet server sites.
C) One critical production process provides 60 parts/min. output, compared with a company-wide output of 90 parts/min.
D) Balanced, fast movement of the product through the plant.