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题目材料：
Many shipwrecks dating from the period between A.D. 300 and 600 have been discovered in the Ramian Sea. Well over half of those ships were carrying cargo stored in large ceramic jars, many of which were preserved largely intact on the ocean floor. During that period, such jars carried only liquid. Therefore, liquid cargo was probably carried by a majority of the cargo ships that navigated the Ramian Sea during that period.
Which of the following would it be most useful to establish in order to evaluate the argument?
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AWhether carrying large ceramic jars containing liquid cargo increased the likelihood that a ship on the Doridian Sea in that period would be wrecked
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BWhether the total volume of shipping across the Doridian Sea varied significantly from century to century during that period
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CWhether in the Donidian Sea during that period cargo ships were significantly more likely than other ships to be shipwrecked
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DWhether the majority of wrecked ships discovered in the Doridian Sea that date from that period carried any other merchandise in addition to cargo stored in large ceramic jars
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EWhether there is a method of reliably identifying the specific cargoes carried in large ceramic jars found in the vicinity of ancient shipwrecks
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