The statement "Brand A should receive 45% of promotion support because it generates 45% of category sales" is an example of:

The statement reflects a principle known as fair share analysis. This approach allocates promotional support to a brand based on its contribution to overall category sales. In this case, Brand A generates 45% of the category sales; therefore, assigning it 45% of the promotion budget is a fair and equitable distribution of resources. This method ensures that promotional investments are aligned with the actual market performance of brands within a category.

Fair share analysis plays a crucial role in category management as it promotes efficiency and accountability in spending by tying promotional support directly to a brand's sales performance. It helps retailers and manufacturers make informed decisions about how to allocate resources to maximize sales and profitability across the category.

In contrast, the other options do not accurately reflect the reasoning behind the allocation described in the statement. Market share analysis focuses on the brand's portion of the total market, cost-benefit analysis evaluates the financial implications versus the benefits of an action, and SWOT analysis examines internal and external factors impacting a brand's success. None of these approaches directly address the relationship between category sales and promotional support as effectively as fair share analysis does.