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Verbal·Standard English Conventions·Boundaries
hard
The Orionid meteor shower’s brightness typically surpasses that of the Daytime Arietid meteor shower due to the interplay of three main factors—namely, the size and composition of the __________ velocity upon entering Earth’s mesosphere, with higher-velocity meteoroids releasing more energy; and atmospheric fluctuations, such as changes in sky conditions.
Which choice completes the text so that it conforms to the conventions of Standard English?
A
meteoroids; their
B
meteoroids. Their
C
meteoroids, their
D
meteoroids—their