In Contrast to Traditional, Randomized Controlled Studies, Outcomes Research Evaluates

In contrast to traditional, randomized controlled studies, outcomes research evaluates results of healthcare processes by:

A) focusing studies on the "real world" of physician offices, hospitals, clinics, and homes and includes patients' functional status.
B) relying principally on analyses of patients' lab results and diagnostic measures to determine functional status.
C) compiling anecdotal reports from the patients' primary providers.
D) using insurance companies' claims datA)