The Caldera Now Filled by Crater Lake

The caldera now filled by Crater Lake

A) is the center of the Mazama resurgent caldera
B) formed as the top of the Mt. Mazama collapsed into the magma chamber after a major eruption
C) was formed in a titanic eruption that destroyed Mt. Mazama and blasted pieces of it over hundreds of square kilometers.
D) is the cooled vent formed when Mt. Mazama became an extinct volcano
E) prevents future eruptions by providing a way to cool rising magma