Which of the following represents a medicallyunderserved population?

A medically underserved population is a population of individuals with either a large elderly population, high infant mortality rate, high level of poverty or lack of providers1. This definition aligns with option D, which refers to patients living below the income poverty line. These individuals often lack access to primary care health services2, which is a key characteristic of medically underserved populations. Therefore, the answer is D. patients living below the Income poverty line.