Cosmology is the study of the universe, including its origin, nature, and evolution.
Geology is the study of rocks found on earth and the changes it underwent as a result to the changes that occurred on earth.
Meteorology is the study of the atmosphere. It is an interdisciplinary scientific study.
Isostatic rebound occurs when a load is imposed on or removed from the lithosphere. The surface tends to rise or sink as the lithosphere rises or sinks in the asthenosphere. Loads may consist of large lakes, oceans (on continental shelves during eustatic sea level rise), ice, sediment, thrust sheets, and volcanoes.
Deposition is the geological process in which sediments, soil and rocks are added to a landform or land mass. Wind, ice, water, and gravity transport previously weathered surface material, which, at the loss of enough kinetic energy in the fluid, is deposited, building up layers of sediment.
B & C in my opinion. If it asks for one— B. is what I would choose.