Final answer:
The behavior of the butterfly that raised concerns about its health was raising its abdomen at a 90-degree angle.
Step-by-step explanation:
The behavior of the butterfly that raised concerns about its health was raising its abdomen at a 90-degree angle (option b). This behavior is abnormal and could indicate a health issue or injury. Butterflies normally keep their abdomen aligned with their body, so a raised abdomen could suggest a problem.
L