Answer: C) using the sociological perspective.
Explanation: 1) its the only one that makse sense and
2) make the inference that the question asked about society and the answer says sociological.
Because the food chain was messed up.
Answer: The "Eustachian tube" helps equalize the pressure within the ear.
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Hope this helps!
Best wishes to you!
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I think it might be <em>natural disasters.</em>