The correct answer is A. Cosmography.
Cosmography is the branch of astronomy that deals with the description and mapping of the main features of the universe. It is concerned with the size, shape, and structure of the universe, as well as the distribution of matter and energy within it.
Cosmology is the branch of astronomy that deals with the origin, evolution, and ultimate fate of the universe. It is concerned with the big bang theory, the formation of galaxies and stars, and the nature of dark matter and dark energy.
Geomorphology is the study of the Earth’s surface features, including their origin, evolution, and present-day form. It is concerned with landforms such as mountains, valleys, and deserts, as well as the processes that shape them, such as erosion, weathering, and deposition.
Therefore, the correct answer is A. Cosmography.