... down to C and E and chose E for the following reason ... :
Wouldn't answer choice E strengthen the conclusion in that ... they will? More specifically, should E not be true, then would ... 't? Doesn't answer choice E bridge the gap and make ...
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/