(Epidemiology Review) Which of the following scenarios would best be used to test for “Effectiveness?” (Choose the best

[answerhappygod]

(Epidemiology Review)
Which of the following scenarios would best be used to test for“Effectiveness?” (Choose the best answer)
A.) A clinical trial of a new type of asthma inhaler conductedunder controlled laboratory conditions.
B.) The introduction of a new oral blood pressure medication inseveral counties in New Hampshire.
C.) An analysis of the costs and benefits of a new pain killerfor pediatric use.
D.) Testing of sore throat cultures from hospitalized patientsto test for relapse after a certain period of time.