Which statement correctly summarizes the primary comparative roles of the CDC (national) and WHO (global) in outbreak response?

• A. WHO handles only financial aspects of outbreaks and has no authority to issue clinical guidance, while CDC manages every aspect of international case reporting and travel advisories for the entire planet.
• B. CDC provides national leadership, technical expertise, and support for domestic surveillance and outbreak response; WHO coordinates international surveillance, guidance, and cross‑border responses.
• C. CDC governs and enforces infectious disease control for all countries worldwide, while WHO only conducts laboratory research without any role in coordination or guidance.
• D. Both CDC and WHO operate identically and redundantly with no division of responsibilities, so countries may ignore one agency in favor of the other during outbreaks without affecting response coordination.

Answer: (B)