Answer:
The correct answer is letter "C": during the design phase.
Explanation:
In order to minimize costs during the production process of a good, it is better to identify potential issues during the design phase. It allows the organization to correct the problem and even improve the quality of the initially expected good. Besides, if the issues are corrected before the product is commercialized, it will avoid the company of being imposed lawsuits for not carrying out proper quality assurance inspections.