OG详解-OG4 文法 Q15

Choice C is the best answer. The sentence effectively presents Tan’s research to an audience unfamiliar with Angkor Wat, explaining the results of the research and identifying Angkor Wat as a temple in Cambodia.
Choice A is incorrect. While the sentence presents Tan’s research, it fails to explain what Angkor Wat is for an audience unfamiliar with the temple. Choice B is incorrect. The sentence emphasizes the role that decorrelation stretch analysis played in Tan’s research; it doesn’t present the research, which would require specifying where it was conducted. Choice D is incorrect. While the sentence explains what Angkor Wat is, it fails to present Tan’s research.