2. PART B: Which detail from the text best supports the answer to Part A? "Together, these destructive waves swept Alaska's coastline with devastating speed and power. In places, the waves towered as high as a 20-story building." (Paragraph 7) B. "In 1964, plate tectonics still was just an emerging - if unproven — concept. It held that Earth's uppermost layer, called the lithosphere, is broken into enormous pieces." (Paragraph 12) c. "The land that was uplifted - and sometimes dropped — by the Great Alaskan Quake also fits with the plate-tectonics model. As convergent plates collide, the D. overriding — or top — plate gets slowly pushed up." (Paragraph 31) "Pacific Plate motion also creates volcanoes as rock melted by the sinking plate rises to the surface. In Alaska, more than 50 volcanoes have erupted over the last 250 years." (Paragraph 36)

"The land that was uplifted - and sometimes dropped — by the Great Alaskan Quake also fits with the plate-tectonics model. As convergent plates collide, the overriding — or top — plate gets slowly pushed up." (Paragraph 31)

This detail directly connects the concept of plate tectonics to the geological event described in the text, which is the Great Alaskan Quake. It explains how the movement of Earth's tectonic plates, specifically the convergent plates colliding, can result in the uplift and dropping of land during an earthquake. This supports the idea that the destructive waves mentioned in the text were a result of the tectonic activity caused by the movement of plates.

Furthermore, the mention of the plate-tectonics model in this detail aligns with the context of the question, as Part A likely pertains to the cause or mechanism behind the destructive waves that hit Alaska's coastline. By highlighting the relationship between plate movements and seismic activity, this detail provides a strong basis for understanding how the earthquake led to the devastating waves mentioned earlier in the text.