|Question 18Verbal

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Text
The Austronesian language family comprises some 1,200 languages—including the _____ Madurese and Bikol, which are spoken by 14 million and 4.6 million speakers, respectively—and accounts for one-fifth of the world's languages, making it of keen interest to linguists like Diane Massam.
Which choice completes the text so that it conforms to the conventions of Standard English?
languages
A
languages—
B
languages:
C
languages,
D