Option 4: (C), (B), (D), (A) -> Forms a coherent sentence: "Deforestation continues to threaten biodiversity across the globe as large swathes of forests are cleared for agriculture, urbanisation, and industrial development leading to climate change and loss of wildlife habitats." This follows a logical flow: main statement → explanation → specific causes → consequences.
Hence, Option 4: (C), (B), (D), (A) -> Part (C) establishes the main subject and action, (B) completes the context ("across the globe"), (D) specifies the reasons for deforestation, and (A) describes the resulting consequences, creating a grammatically and logically complete sentence about environmental degradation -> correct