2. PART B: Which detail from the text best supports the answer to Part A?
A. "'The fact that there was a large number of undiscovered volcanoes in Antarctica that had escaped attention was honestly surprising to all of us, especially given that many of them are huge'" (Paragraph 5)
B. "A rift zone forms where some of the tectonic plates of Earth's crust are spreading or splitting apart. That allows molten magma to rise toward Earth's surface." (Paragraph 11)
C. "Measuring temperatures at the base of an ice sheet is quite hard, notes Van Wyk de Vries. So it's hard to tell how warm the volcanic province is, beneath all that ice." (Paragraph 19)
D. "Buried volcanoes may behave differently in different parts of the ice sheet. Researchers may find all three effects - melting, pinning and erupting - at different spots." (Paragraph 23)
