Jason, a personal care product manufacturer, incorporates customers' suggestions in designing a new line of safety razors for men. The new product is launched with thinner, finer blades. However, when the new razors reach the market, customers fail to notice any improvement in them. In the given scenario, the customers' reactions indicate that the new razor design has failed to register the _____.

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The customers' failure to notice any improvement in the new safety razors suggests that the new design has failed to register the just noticeable difference (JND) for them. JND refers to the minimum amount of difference that must be present between two stimuli for a person to notice that they are different. In this case, the thinner, finer blades did not create a noticeable difference for customers. The mere exposure effect (A) refers to the phenomenon where repeated exposure to a stimulus increases one's liking for it, while mere association effect (B) refers to the tendency to associate two things with each other based on their co-occurrence in the environment, regardless of any causal relationship. Just meaningful difference (C) is a term used in market research to refer to the smallest difference in a product's features that is meaningful to consumers.

Jason, a Personal Care Product Manufacturer, Incorporates Customers' Suggestions in Designing