Which of the following best describes the development of the theory of plate tectonics? A. Scientists developed the theory of plate tectonics without empirical evidence.

B. Scientists believed that the existing Law of Universal Gravitation supported the theory of plate tectonics.

C. Scientists established the theory of plate tectonics by observing plate movement directly within Earth's core.

D. Scientists used the discovery of seafloor spreading to support continental drift, which led to the theory of plate tectonics.

C. Scientists established the theory of plate tectonics by observing plate movement directly within Earth's core.

Explanation:

Therefore, the correct answer is C.

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I believe it is C.  

Explanation:

I believe this because Scientist could not discover this without evidence.

And a law would not do anything but give them more reason to support the theory of plate tectonics.

And the seafloor could be a possible outcome but i know for a fact that scientist have a device that can go into earth's core to study the movements.

This is why i believe it is C.

Sorry if it is wrong im new to this.