Question

The Earth's crust is divided into plates that move over the mantle and interact at

plate boundaries. This modern understanding of movement of the crust is explained
by
the principle of superposition
the theory of plate tectonics
the theory of geologic displacement
the theory of continental drift

Answer 1

The theory of plate tectonics

Step-by-step explanation:

The theory of plate tectonics because it's suggesting that it's about how the plates interact with eachother.