"Children who eat vegetables are healthier. We should force all children to eat vegetables." Which principle, if true, would most undermine this argument?

The correct answer to the question ""Children who eat vegetables are healthier. We should force all children to eat vegetables." Which principle, if true, would most undermine this argument?" is Option B: Forcing a behavior often creates resistance and can be counterproductive to the desired outcome.

The other options — A) Vegetables are nutritious, C) Children are picky eaters, D) Vegetables are inexpensive — are incorrect for this LSAT Exam Prep question. As explained above: If forcing creates resistance (children refuse even more), the policy may backfire. The voluntary nature of the observed behavior matters.