Answer: A. Beyond
Explanation:
The prefix extra in this contest means beyond. That means that a beyond solar planet is outside solar and something that is beyond terrestrial which means something outside of Earth.
B, C, and D are incorrect answers because they are not fitting into the context of the sentence.
Answer
That would be the tectonic plates.
form a mountain chain requires converging plates
sedimentary rock requires oceanic crust
so the ans is B. convergent boundary of oceanic crust and continental crust