Which sentence from the article supports the MAIN idea of the article?
A
It's rare that interpreting the Constitution is straightforward and easy.
B
Justices who follow this doctrine often review historical documents.
C
From these two viewpoints came a third method.
D
They believed this would help it get confirmed more quickly.
C - From these two viewpoints came a third method.
This sentence supports the main idea of the article, which is about the different methods of interpreting the Constitution and how the concept of originalism emerged as a third method.