A company is discussing how to improve customer satisfaction. Jia says: "We should increase the number of customer service staff to shorten response time." Yi says: "Customer satisfaction depends on the repurchase rate, so we should focus on follow-up visits with existing customers." Bing says: "Customer satisfaction means customers are willing to recommend us, so we should implement a referral reward program." The three argue more and more intensely, but cannot reach an agreement. From the perspective of the law of identity, where is the most likely source of the problem?

Answer: D

• AAll three are actually discussing customer satisfaction, just from different angles, so they should be able to reach a consensus.✗ Wrong. Although all three superficially talk about "customer satisfaction," they assign different meanings to the concept—Jia refers to response time, Yi refers to repurchase rate, and Bing refers to willingness to recommend. They are not discussing the same matter; it is not a difference in perspective but a difference in subject.
• BJia has replaced "customer satisfaction" with "customer service response time," thereby leading the discussion astray.✗ Wrong. Jia is not deliberately substituting concepts in a logical argument; rather, he initially understands "customer satisfaction" as related to response time. This is an issue of ununified definitions, not a subtle replacement of an established definition in a specific statement, so it cannot be said that Jia alone is guilty of equivocation.
• CYi has replaced "customer satisfaction" with "repurchase rate," causing the discussion with Jia and Bing to be about different concepts.✗ Wrong. Yi is also providing a definition based on his own understanding, rather than first acknowledging a shared definition and then secretly altering it. The real problem is that from the start, the three never clarified the definition of "customer satisfaction" in this discussion; it cannot be attributed to any single party.
• DThe three have inconsistent definitions of "customer satisfaction," leading them to appear to discuss the same issue while actually talking past each other.✓ Correct. The law of identity requires that the same concept maintain a consistent meaning throughout the discussion. Here, "customer satisfaction" is not uniformly defined; Jia, Yi, and Bing each use it to refer to different metrics, so the more heated the discussion, the more confusion arises. They should first clarify what it refers to and how it is measured before continuing.