Which Statement About the May, 1980, Eruption of Mount St

Multiple Choice

Which statement about the May, 1980, eruption of Mount St. Helens is false?

A) Plumes of ash rose high into the stratosphere during the major eruptive events.
B) Mudflows (lahars) accompanied the major eruptive events going tens of kilometres.
C) The event devastated a wide swath of timberland on the north side of the mountain.
D) During the eruptive period, the mountain peak was substantially built up by new lava flows and pyroclastic debris.