## **Core Concept**
The question pertains to the evaluation of health programs, specifically focusing on the method where benefits are quantified in terms of outcomes or results achieved. This concept is crucial in public health and health policy for assessing the effectiveness and efficiency of interventions.

## **Why the Correct Answer is Right**
The correct answer, **Cost-Effectiveness Analysis (CEA)**, is a method used to evaluate the cost of achieving a specific health outcome or result. In CEA, the benefit or outcome is expressed in terms of results achieved, such as lives saved, cases prevented, or quality-adjusted life years (QALYs) gained. This approach allows for the comparison of different health interventions based on their efficiency in achieving specific health outcomes.

## **Why Each Wrong Option is Incorrect**
- **Option A:** Without the specific text of Option A, we cannot directly address its incorrectness, but we can infer that it does not accurately describe the method where benefits are expressed in terms of results achieved.
- **Option B:** Similarly, without the text, we can't provide a direct explanation, but it's implied that Option B does not match the definition of expressing benefits in terms of results achieved.
- **Option C:** Assuming Option C might refer to another type of economic evaluation like Cost-Benefit Analysis (CBA) or Cost-Utility Analysis (CUA), it would be incorrect because CBA expresses both costs and benefits in monetary terms, and CUA expresses benefits in terms of utility (often QALYs), not just results achieved.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that **Cost-Effectiveness Analysis** is particularly useful in healthcare because it helps decision-makers choose between different interventions that achieve similar health outcomes but at different costs. This method is widely used in health economics to prioritize resource allocation.

## **Correct Answer:** D. Cost-Effectiveness Analysis.