What distinguishes push-ups from other chest exercises such as the bench press and dumbbell flies? A. The bench press also exercises the legs. B. Push-ups are a variable resistance exercise. C. Push-ups do not require any weights or machines. D. Push-ups are not actually chest exercises. Please select the best answer from the choices provided. A B C D

Asubject in a clinical research trial experiences a serious, unanticipated adverse drug experience. how should the investigator proceed, with respect to the irb, after the discovery of the adverse event occurrence? a. do not report the adverse drug experience to the irb since it is a common adverse experience.b. report the adverse drug experience to the irb only if there are several other occurrences.c. report the adverse drug experience as part of the continuing review report.d. report the adverse drug experience in a timely manner, in keeping with the irb's policies and procedures, using the forms or the mechanism provided by the irb.