**Core Concept**
Quantitative methods in health management involve the use of numerical data and statistical analysis to inform decision-making. This approach enables healthcare providers to evaluate the effectiveness of interventions, monitor trends, and allocate resources efficiently.

**Why the Correct Answer is Right**
The correct answer is **C. Cost-Benefit Analysis** (CBA). CBA is a quantitative method that compares the costs and benefits of a health intervention to determine its value. It involves assigning numerical values to both costs and benefits, which are then compared to decide whether the intervention is worthwhile. CBA is widely used in healthcare to evaluate the cost-effectiveness of treatments, programs, and policies.

**Why Each Wrong Option is Incorrect**
* **Option A:** **Qualitative Research** is a non-numerical approach that focuses on gathering and analyzing non-numerical data, such as text, images, and observations. It is used to gain a deeper understanding of a health issue or problem, but it is not a quantitative method.
* **Option B:** **Evidence-Based Medicine** is a clinical approach that involves using the best available evidence to make informed decisions about patient care. While EBM relies on numerical data and research findings, it is not a quantitative method of health management per se.
* **Option D:** **Health Promotion** is a strategy aimed at improving the health and well-being of individuals and communities. While health promotion may involve quantitative data, it is a broader concept that encompasses various approaches, including qualitative and quantitative methods.

**Clinical Pearl / High-Yield Fact**
When evaluating the effectiveness of a health intervention, consider using the CBA framework to assign numerical values to costs and benefits. This will help you make informed decisions about resource allocation and policy development.

**Correct Answer:** C. Cost-Benefit Analysis.