Which statement correctly differentiates PAN-PAN and MAYDAY and their escalation?

• A. PAN-PAN is distress; MAYDAY is urgent
• B. PAN-PAN is urgent but not life-threatening; MAYDAY is distress; For PAN-PAN, escalate to NCS and allocate priority; For MAYDAY, immediate emergency route, escalate to full emergency net
• C. Both are equally urgent
• D. PAN-PAN is routine; MAYDAY is only for aircraft

Answer: (B)