I think it is c
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Hi the answer to your question is called the jugular notch and the cricoid cartilage that the thyroid gland is between.
Hope this helps.
Answer: In chemistry, a dehydration reaction is a conversion that involves the loss of water from the reacting molecule or ion. Dehydration reactions are common processes, the reverse of a hydration reaction. Common dehydrating agents used in organic synthesis include sulfuric acid and alumina. Often dehydration reactions are effected with heating.
Explanation: Yw and pls mark me as brainiest. I sure hope this helps you.