What does the author mean when he states that it would be an "exercise in futility" to try to list all the behaviors observed in a person? A) You would get a terrific workout if you listed all the behaviors you observed in a person. (B) It should be easy to list every behavior you observe in a person with whom you are interacting. (C) There is no reason to pay attention to any of a person's behaviors as you interact with that person. D) It is not feasible to list the behaviors because there are so many of them in any interaction.

When the author refers to it as an "exercise in futility," he is humorously suggesting that attempting to list every behavior observed in a person can be overwhelming and ultimately pointless. People display a myriad of behaviors, often unconsciously, and capturing them all is simply impractical, like trying to catch water with a sieve! In real-life situations, think about how dynamic human interactions are; they involve countless verbal and non-verbal cues. Instead of getting bogged down by the specifics, it’s usually more productive to focus on key behaviors that drive the interaction or relationship forward. After all, no one has time to create a behavior encyclopedia for every conversation!