A Nurse Working on a PICO Question Has Found a Large

Multiple Choice

A nurse working on a PICO question has found a large amount of literature available on the topic with multiple studies that have been published.Which type of study should have the best evidence?

A) Meta-analysis of randomized control trials
B) Opinion of an expert committee
C) One well-designed randomized control trial
D) Systematic review of descriptive and qualitative studies