Explanation:
a metric unit of square measure, equal to 100 ares (2.471 acres or 10,000 square metres)
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Assuming that the underlined clause is : that i had missed the train,
the one that best describes the underlined clause is : A. Noun Clause
Technically, the underlined clause can stand alone as an independent clause. But if it putted together like this, it act as a noun
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