Final answer:
The boundary between the Nazca Plate and the South American Plate is a convergent boundary, characterized by subduction. This leads to the destruction of the continental crust of the South American Plate.
Step-by-step explanation:
The Pacific Plate, Nazca Plate, and South American Plate are tectonic plates that interact at their boundaries. The boundary between the Nazca Plate and the South American Plate is a convergent boundary, where the Nazca Plate is subducting beneath the South American Plate.
This subduction zone is characterized by the Nazca Plate being forced beneath the South American Plate. As a result, you would expect the formation of a trench, such as the Peru-Chile Trench, along with volcanic activity due to the melting of the subducting plate. For example, the volcanic arc of the Andes Mountains is a result of the Nazca Plate subduction beneath the South American Plate.
Therefore, the correct answer is Choice B. Destruction of the continental crust, as the subduction of the Nazca Plate leads to the destruction of the continental crust of the South American Plate.
Learn more about Plate Tectonics