Answer:
D. Fissure
Explanation:
On the image, we have a fissure. The fissure is a linear volcanic vent through which there are eruptions occurring. The fissures are connected with the volcano, but they can be tens of kilometers away from the volcano, or even more. This makes them very dangerous, as they can occur pretty much everywhere around the volcano, suddenly erupting from bellow the ground, making explosions, cracking the ground, and causing fires.
