The correct answer is A, C and D are correct. Explanation & Key Takeaways: • UN COP 15 refers to the 15th Conference of the Parties to the Convention on Biological Diversity (CBD), which is important for understanding the context and the factual correctness of the statements given. • The Global Biodiversity Agreement was approved by this Council is correct. During COP 15, significant agreements were made regarding biodiversity conservation goals, including frameworks to guide global actions to preserve and protect natural habitats and biodiversity. • The Global Biodiversity Agreement was done under the Presidency of America is incorrect. • The COP 15 was not presided over by America. It was chaired by China, although it was held partially in Montreal, Canada. • China presided 'UN COP 15' correct. • Although the venue for part of the COP 15 sessions was in Montreal, Canada, it was under the presidency of China. • There is a need to make efforts to reduce the consequences of climate change and the conservation of threatened species in the agreement correct. • The agreement emphasized the need for conservation of biodiversity which indirectly impacts climate change mitigation efforts and directly relates to the conservation of threatened species. • Given these clarifications, the correct answer that includes all and only the true statements is: 4) A, C and D are correct