Which of the Following Best Describes How Geysers Erupt

Multiple Choice

Which of the following best describes how geysers erupt?

A) Water suddenly boils in disconnected voids and cracks above the water table, causing the aquifer to explosively fragment.
B) With a slight reduction in pressure, water in a saturated, natural conduit suddenly boils, sending a plume of steam and hot water into the air above the vent.
C) Water slowly boils in a network of vertical cracks above the water table, sending up a plume of steam and hot water.
D) Water below the water table slowly boils in a vertical crack or natural conduit, causing a plume of condensed water vapor to rise above the vent.