Answer:
The correct answer is an hour lost at the bottleneck is an hour lost for the entire system.
Step-by-step explanation:
This was one of the rules of the book "The goal", by Eliyahu Goldratt. It means that the bottleneck resources are those that have capacity limitations that lead to limiting the entire production process. For this reason it is necessary to make an evaluation of each one of the processes with a direct impact on the production of the product, in order to ensure that none will present determinants that impact the entire chain.