Answer:
B Heart and lungs
Explanation:
The thoracic cavity is another term for the chest cavity. It is enclosed by the ribs, spine, and breast bone, and is separated from the abdomen by the diaphragm.
It contains the heart, lungs, and the esophagus, and the blood vessels that supply them.
The answer is: [C]: pure sociology .
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Note: "Pure sociology" is also known as "basis sociology".
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