Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Force |  | Type of Erosion |
| --- | --- | --- |
| rain | causes | spash erosion; sheet erosion; rill erosion; gully erosion; water erosion |
| surface runoff | causes | spash erosion; sheet erosion; rill erosion; gully erosion; water erosion |
| running water; river; stream; ocean | causes | valley erosion; stream erosion; water erosion; bank erosion; thermal erosion |
| wave | causes | wave pounding; water erosion |
| glacier | causes | glacial erosion; abrasion; scouring; plucking; ice thrusting |
| flood | causes | water erosion |
| weathering | causes | gravity erosion |
| wind | causes | wind erosion; deflation; abrasion; surface creep; saltation; suspension |
| the sun rapidly heating rocks | causes | exfoliation |
Question:
Which of the following causes gravity erosion? Select the correct choice to answer the question or fill in the blank.
Choices:
(A) Weathering
(B) Flood
(C) Glacier
(D) Wind
Answer:
(A) Weathering