❓ 質問 According to the passage, which of the following is a major reason why some scientists oppose the formal recognition of the Anthropocene?
- A. The term was not originally proposed by a geologist.
- B. There is no globally synchronous stratigraphic boundary clearly defining its start.
- C. Human activities have not yet produced permanent geological markers.
- D. The Holocene epoch has been proven to be unaffected by human influence.