The principal focus of the quality control era was to: Select one: a. replace inspection with more informative process control systems b. reduce variation in outputs c. deliver more consistency by focusing on inputs d. all of the above

Respuesta :

Answer: all of the above

Explanation:

The principal focus of the quality control era was to reduce the variation that occured in outputs, replace inspection with more informative process control systems and also deliver more consistency by focusing on inputs.

Therefore, the answer to the question is all of the above.