Answer: Option (B)
Explanation: A cinder-cone volcano is a steep, cone-like, explosive volcano that produces pyroclastic materials during eruption. Its steepness is about 30°- 40° and height ranges from a few meters to about 350 meter.
The hot molten magma rises up through a single vent and as eruption takes place, the materials gets accumulated around the vent in a circular manner. This is comparatively less violent than the composite volcano.
Thus the correct answer is option (B).
