Final answer:
The source supports the interpretation that World War I increased the number of qualified health care professionals in the U.S., as it led to greater emphasis on public and private health initiatives, laying the foundation for advances in biomedical thinking and the establishment of international health organizations.
Step-by-step explanation:
The historical interpretation that the source most supports is:
A) World War I increased the number of qualified health care professionals in the United States.
During and following World War I, there was a significant emphasis on public and private health initiatives, which were intertwined with broader human rights declarations and the quest for improved public health outcomes. This period saw the United States experiencing a boom in health care development due to the changing societal needs that emerged as a direct result of the war. Furthermore, the war effort stimulated advancements in biomedical thinking focused on “conquering” infectious diseases, and the founding of important international health organizations that signify an increased number of health care professionals and expertise. Thus, the war contributed to elevating the prominence and capacity of the health care system in the United States.