Geologists Have Evidence That Over the Past 1

Geologists have evidence that over the past 1.5 billion years,

A) Earth's land masses have been entirely submerged in water on three occasions.
B) Earth's land masses have joined into a single continent and split back apart again on three occasions.
C) Earth's land masses have moved about extensively but have remained separate.
D) Earth's continents have remained essentially in their current shape and positions.