Concept:A volcano that remains inactive for a very long time but may still erupt in the future is classified as dormant.
Explanation:Volcanoes are grouped by their recent activity and potential to erupt again.
Active volcanoes erupt frequently or have erupted recently.
Dormant volcanoes have not erupted for a long time, yet they still have the chance to erupt in the future.
Extinct volcanoes have not erupted in recorded history and are unlikely to erupt again.
The terms intrusive and extrusive describe how igneous rocks form, not a volcano's eruption status.
Therefore, the correct classification for such a volcano is dormant.
Answer:B. dormant