Who is credited with the discovery of the structure of DNA?

The discovery of the structure of DNA is attributed to the collaborative efforts of several scientists, including Francis Crick, James Watson, and Rosalind Franklin.

Francis Crick and James Watson are well-known for building the first accurate model of DNA's double helix in 1953. They utilized information from various sources, including Franklin's X-ray diffraction images of DNA, which were crucial in understanding the helical structure.

Rosalind Franklin's contributions were vital as her X-ray crystallography provided key insights into the physical structure of DNA. Although she did not receive recognition during her lifetime, her research laid important groundwork that was essential for Crick and Watson.

Thus, acknowledging all three scientists highlights the collaborative nature of scientific discovery, making "All of the above" the most accurate choice to illustrate the collective contributions to understanding DNA's structure.