Health equity can be defined as:

Health equity refers to the principle of ensuring that everyone has a fair and just opportunity to be as healthy as possible. This involves addressing social determinants of health that contribute to disparities in health outcomes among different populations. The concept emphasizes that while equal treatment and availability of healthcare services are important, they are not sufficient to achieve health equity.

The correct interpretation of health equity involves recognizing that various populations may start from different baseline health statuses due to a range of factors, including socioeconomic status, environment, racial and ethnic backgrounds, and access to resources. Therefore, simply providing the same healthcare services to everyone does not necessarily lead to equal health outcomes if underlying social inequalities are not addressed.

While the other definitions touch on aspects of health care, they do not capture the nuanced understanding of health equity. For example, having the same health outcomes for all populations (implied by one of the choices) does not recognize the systemic inequities that lead to different health statuses across groups. Therefore, none of the provided options accurately encompass the full concept of health equity, which is why the choice "None of the above" is correct.