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According to the passage, for which of the following reasons are the late seventeenth and early eighteenth-century Chinese records important?
A.
They contradict the theory of the Maunder minimum.
B.
They suggest that the Maunder minimum cannot be related to climate.
C.
They verify the existence of a span of unusual cold worldwide during the Maunder minimum.
D.
They show that the European observations are of dubious statistical significance.