Answer:
C. Creep
Explanation:
Creep is one of the main classes of mass movement which is very slow and it's a continuous process that occurs for decades, though it is not physical but the effect it create can be seen.
The Sun is a main - sequence star, and thus generates its energy by nuclear fusion of hydrogen nuclei into helium. In its core, the Sun fuses 620 million metric tons of hydrogen each second.
Many scientists think the sun and the rest of the solar system formed from a giant, rotating cloud of gas and dust known as the solar nebula. As the nebula collapsed because of its gravity, it spun faster and flattened into a disk. Most of the material was pulled toward the center to form the sun.
