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In the sentence "these newcomers will be at their own expense" (Line 2, Paragraph 3), "the
In the sentence "these newcomers will be at their own expense" (Line 2, Paragraph 3), "their" probably refers to ______.
A.these newcomers
B.rich countries in "first-world"
C.many bosses, workers and politicians
D.bosses, workers and politicians in the rich world
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