Answer:
C. Inform the health department about the symptom and ask the supervisor if cleaning floors and windows is permitted.
Explanation:
When a food handler experiences a migraine hours before a shift but recovers just before working, they should notify the health authorities and consult their manager about doing non-food handling duties like cleaning floors and windows. Because a migraine may signal an illness, the worker should avoid tasks involving direct food contact to prevent possible contamination, yet can continue working in roles that do not involve food.