The reason why E doesn't help is because E requires us to go one more step to explain why people aren't wearing seat belts?(because they are not obeying the law?)
http://7sage.com/lsat_explanations/lsat-37-section-2-question-17/
Just a thought - has anyone else noticed an increase in repetitive answer choices, such as getting answer choice D for 14, 15, 16 and 17? It seems like as I've worked through the newer tests it becomes more prevalent.