def determine_food(person_type):
if person_type == "healthy":
print("Eat an apple.")
elif person_type == "doesn't care":
print("Drink coffee.")
elif person_type == "unhealthy":
print("Eat chocolate.")
else:
print("Unknown preference. Choose a valid option.")
# Example usage:
determine_food("healthy") # Output: Eat an apple.
determine_food("doesn't care") # Output: Drink coffee.
determine_food("unhealthy") # Output: Eat chocolate.