Problem: A pharmaceutical company promotes a new medication based on a retrospective cohort study and an unbiased positive opinion from an expert. A meta-analysis of four randomized controlled trials (RCTs) shows no significant benefit from the medication. Which of the following statements by the NP provides the most reasonable conclusion? Need Assignment Help? • A. Cohort studies are the gold standard in evidence-based practice; the medication is superior. • B. Expert opinions outweigh all other kinds of evidence; the medication is superior. • C. Current evidence points to a lack of added benefit of this medication. • D. Further research is absolutely needed to clarify the efficacy of this medication.