For each of the following, which source of law—a constitution, a statute, an administrative law, or a court opinion—would be best able to handle the problem and why? a. A requirement that all motorcycle riders wear helmets
b. A rule making a bar owner liable for any injuries caused by apatron to whom the bar sold drinks.
c. A rule that all semi-trailers traveling on the interstate highwaysuse concave mud flaps.
d. A requirement that employers not discriminate on the bases of areligion or sexual orientation

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.

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Which of the following is a polynomial with roots 3,5i, and -5if(x)=x^3-3x^2+25x-75f(x)=x^3-3x^2+15x-25f(x)=x^3-15x^2+25x-75f(x)=x^3-3x^2+15x-75