Answer:
The correct answer is volcanic depression.
Explanation:
We refer to a depression in the area of the land relief that is less elevated than the surrounding areas.
An example of volcanic depression is a caldera. That it is indeed a sunken sector in the relief, which was formed because of different volcanic eruptions. Its structure is very similar to a circle, has vertical walls and a very large background.
This is how Crater Lake was formed, which partially fills a volcanic caldera about 594 meters deep that was formed about 7,700 years ago by the sinking of the Mazama volcano.
