Option 2: (B), (D), (C), (A) -> Reads as "Global pandemics have highlighted healthcare vulnerabilities, emphasising the need for stronger health systems, to prevent future outbreaks and rapid spread ensuring global preparedness and response strategies" - forms a complete, logical sentence with proper subject-verb structure and logical flow of ideas.
Hence, Option 2: (B), (D), (C), (A) -> The sentence begins with the main clause identifying the subject (global pandemics) and what they revealed (healthcare vulnerabilities), then logically flows to emphasize the solution needed (stronger health systems), followed by the purpose (preventing outbreaks) and the means to achieve it (ensuring global preparedness strategies). This creates a coherent cause-and-effect structure discussing pandemic lessons and healthcare improvements. -> correct