❓ 题目 According to the passage, what is a major reason why the Anthropocene has not been formally recognized as a geological epoch?
- A. A. The term is too political and lacks scientific backing.
- B. B. Human impact began too recently to leave any stratigraphic markers.
- C. C. There is no agreed-upon start date with clear and global geological signals.
- D. D. Most geologists believe that human influence is too minor to alter Earth's systems.