This question aligns with Measurement and Analysis , specifically differentiating between qualitative and quantitative data. Qualitative methods (such as interviews, focus groups, and open-ended feedback) are uniquely suited to understand the "why" behind patient perceptions and experiences , making Option C correct. These methods provide rich, descriptive insights into emotions, motivations, and underlying reasons for satisfaction or dissatisfaction. Options A and B can be informed by both qualitative and quantitative data, while Option D relies primarily on quantitative measures like surveys and scores. CPXP principles emphasize that while quantitative data identifies trends and performance levels, qualitative data is essential to interpret those findings and uncover root causes , enabling more targeted and meaningful patient experience improvements.