Final answer:
A mid-ocean ridge is not considered a central vent volcano. Mid-ocean ridges are long undersea mountain ranges formed by lava rising from Earth's mantle at plate boundaries.
Step-by-step explanation:
The correct answer is a mid-ocean ridge. A mid-ocean ridge is not considered a central vent volcano. Mid-ocean ridges are long undersea mountain ranges formed by lava rising from Earth's mantle at plate boundaries. They are not classified as central vent volcanoes because they are not formed by the same volcanic activity as the other options listed. Central vent volcanoes include cinder cones, calderas, shield volcanoes, and stratovolcanoes.