The correct answer is D: Nancy Grace Roman
NASA's new telescope is named after Dr Nancy Grace Roman, who was known as the “mother of the Hubble Telescope".
NASA says, "It is with great pleasure that we dedicate NASA's next major space observatory tasked with increasing our understanding of dark energy, the universe, and our place in it, to Dr. Nancy Grace Roman, the pioneer of modern space-based astronomy who made such telescopes a reality."
The Nancy Grace Roman Telescope (or just 'Roman' for short) will study the Universe in infrared light, complementing Hubble and the James Webb Space Telescope. Roman has a field of view at least 100 times larger than Hubble's, meaning astronomers can survey the Universe more efficiently.
The telescope's mission has a range of key aims, including measuring the history of dark energy, understanding galaxy formation, mapping galaxy evolution, and looking for planets and small bodies in the Solar System.
Header image: Nancy Grace Roman Space Telescope - illustration by NASA Goddard Space Flight Center Scientific Visualisation Studio