As the proud owner of a donut shop, Ana has realized that if she produces custom (i.e. individually designed and decorated) donuts per day, the cost of production is about $5 per donut; however, if she produces plain and glazed donuts per day on her assembly line equipment, the cost of production is about 25 cents per donut. Based on this information, Ana chooses to focus on producing and selling plain and glazed donuts, and her customers do not seem to mind, as they are delicious! Which of the following refers to the production process Ana has chosen to emphasize in her business? Analytical process Six Sigma Mass production Total quality management (TQM)