Final answer:
Yogurt manufacturers employ Product Differentiation to appeal to various consumer preferences and needs. The bacteria in yogurt lower the pH to kill pathogenic bacteria, which is beneficial for food safety. Beneficial bacteria also promote digestive health and are efficacious as probiotics.
Step-by-step explanation:
Yogurt manufacturers are applying the marketing concept of Product Differentiation by creating a variety of yogurt products such as Greek yogurt, high-fiber yogurt, and bacteria-enhanced yogurt. This concept relates to the idea that a diverse range of products can create monopolistic competition in the market by catering to different consumer preferences and needs. When discussing the additional benefits during food production provided by lactic acid-producing bacteria in yogurt, the correct answer is b. Lowering the pH to kill pathogenic bacteria. This creates a safer product for consumers. These beneficial bacteria, such as Lactobacillus and Bifidobacterium, are known for promoting good digestive health and a well-balanced immune response, supporting the consumption of yogurt with "live" cultures as a probiotic.