8. Which statement best explains how convergent boundaries cause changes in Earth’s crust?

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5 points
a. They create sediments that accumulate on the ocean floor.
b. They allow magma to reach Earth’s surface, creating new crust and landforms.
c. They create large rift valleys on land that eventually separate continents.
d. They cause subduction zones, which destroy old crust and add more magma to the mantle.