OG详解-OG4 文法 Q27

Choice C is the best answer. The sentence effectively presents the influence theory to an audience unfamiliar with the Haudenosaunee Confederacy, explaining the theory’s position that the Great Law of Peace influenced the US Constitution while avoiding mention of the Haudenosaunee Confederacy itself.
Choice A is incorrect. The sentence broadly emphasizes Johansen’s ideas about the Great Law of Peace; it doesn’t identify the influence theory or effectively present it. Choice B is incorrect. The sentence emphasizes one fact that supports the influence theory; it doesn’t effectively present the theory to an audience unfamiliar with the Haudenosaunee Confederacy. Choice D is incorrect. The sentence makes a broad generalization about Native people’s influence on the founding of the US; it doesn’t effectively present the influence theory.