Answer:
C. Quality control
Step-by-step explanation:
"Quality control" refers to monitoring and ensuring the product's quality through a specific benchmark. This can be done through a process of "testing" the products by inspectors for their quality before being sold in the market. If a product doesn't pass the criteria, it will be evaluated carefully in order to learn which part of the production process made an error.
This system varies according to the different business types. For example, food manufacturers will focus more on the taste of their food and how the product appears while car manufacturers will focus more on the assembly of parts.