Which pair does represent two main factors of legal rules that make it easy to differ them from other rules of social conduct?

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.

Most collisions caused by 16-year-old drivers tend to involve . a. a temporary physical impairment b. a willfully dangerous action c. an improper visual search

Is considered traction-reducing weather.