question: car brakes rely on the what to reduce speed
choices.text: electrical impulses transmission tire traction Stomata closing hydrogen and oxygen engine clutches pulley
choices.label: A B C D E F G H
formatted_question: car brakes rely on the what to reduce speed (A) electrical impulses (B) transmission (C) tire traction (D) Stomata closing (E) hydrogen and oxygen (F) engine (G) clutches (H) pulley