question: What does Triceps contracting causes to straighten?
choices.text: Index finger Stomata closing A hinged joint large back muscles Legs Arm hair muscles vital to a good life
choices.label: A B C D E F G H
formatted_question: What does Triceps contracting causes to straighten? (A) Index finger (B) Stomata closing (C) A hinged joint (D) large back muscles (E) Legs (F) Arm hair (G) muscles (H) vital to a good life