A person who lacks self-confidence will enjoy neither telling nor hearing funny stories about
Why this is right
This answer is phrased too black and white for me to like it on a first pass. We're told that being willing to tell jokes about yourself is the clearest indicator of self-confidence, but not that it's the only indicator. There might be other ways that self-confidence can be indicated. The stimulus was of comparative strength, but this answer is phrased absolutely like a conditional. Nevertheless, since this is a Most Supported question, our correct answer in the end doesn't have to feel perfect. It just has to feel best available. This answer says: No Self-Conf ? Don't Enjoy Telling/Hearing Jokes About Self Were we told the contrapositive, "If you do enjoy telling / hearing jokes about yourself, then you have self-confidence?" Ugh. Kind of. We were told that if you enjoy telling jokes about yourself, then that's the surest indicator of supreme self-confidence. Technically, the surest indicator just means the best available indicator, not a perfectly true indicator in all cases. But it's still very reasonable to think that if "X is the surest indicator of Y" then someone who is X is also Y. And the second sentence implies that enjoying hearing jokes about yourself is also a strong indicator of self-confidence. So if telling/hearing jokes about yourself implies self-confidence, then a person lacking self-confidence wouldn't have those traits.
Skill tested: Most Supported · how this choice captures the argument's function is the move to repeat next time.