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Verbal·Standard English Conventions·Boundaries
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On February 1, 2018, a Florida-based research team—Martha A. Scholl, Maoya Bassiouni, and Angel J. Torres-Sánchez—compiled climate data from several sites in Puerto Rico’s Luquillo Mountains. At site CC1, the site with the highest elevation, the air temperature fluctuated slightly throughout the day, registering __________ and 16.2°C at 8:30 p.m.
Which choice completes the text so that it conforms to the conventions of Standard English?
A
17.9°C, at 3:00 p.m. 16°C, at 5:00 p.m.
B
17.9°C at 3:00 p.m., 16°C at 5:00 p.m.,
C
17.9°C at 3:00 p.m. 16°C at 5:00 p.m.
D
17.9°C at 3:00 p.m. 16°C at 5:00 p.m.,