**Core Concept**
Cost-effectiveness analysis is a method used to evaluate the relative value of different healthcare interventions by comparing their costs and outcomes. This approach is particularly useful in public health programs where the goal is to maximize health benefits within a limited budget. In the context of a specific health program, cost-effectiveness analysis helps determine the number of deaths prevented or quality-adjusted life years (QALYs) gained per unit of cost.

**Why the Correct Answer is Right**
Cost-effectiveness analysis involves comparing the costs and outcomes of different interventions to determine which one provides the best value for money. In the case of a public health program aimed at preventing deaths, the outcome of interest is the number of deaths prevented. Cost-effectiveness analysis would compare the costs of implementing different interventions (e.g., vaccination programs, screening tests, or educational campaigns) with the number of deaths prevented or QALYs gained. This approach allows policymakers to identify the most effective and efficient interventions to allocate resources.

**Why Each Wrong Option is Incorrect**
**Option A:** Cost accounting refers to the process of tracking and analyzing the costs of a particular activity or project. While cost accounting is useful for financial planning and budgeting, it does not provide information on the effectiveness of a health program in preventing deaths.

**Option B:** Cost-benefit analysis involves comparing the costs and benefits of a project or program in monetary terms. While cost-benefit analysis can be useful for evaluating the economic impact of a health program, it may not accurately reflect the number of deaths prevented or other health outcomes.

**Option D:** None of the above is incorrect because one of the options (C) provides a suitable method for evaluating the number of deaths prevented as a result of a health program.

**Clinical Pearl / High-Yield Fact**
When evaluating the effectiveness of a public health program, policymakers should consider using cost-effectiveness analysis to identify the most efficient interventions that provide the best value for money. This approach can help optimize resource allocation and maximize health benefits.

**✓ Correct Answer: C. Cost effective analysis**