|Question 19Verbal

Source Texts

Text
On February 1, 2018, Florida-based researchers Martha A. Scholl, Maoya Bassiouni, and Angel J. Torres-Sánchez compiled climate data from several sites in Puerto Rico's Luquillo Mountains. At CC1, the site with the highest elevation, the air temperature fluctuated slightly throughout the day, ________ 11:00 a.m. to 16.2°C at 7:00 p.m.
Which choice completes the text so that it conforms to the conventions of Standard English?
from, 18.4°C at
A
from, 18.4°C at,
B
from 18.4°C at
C
from: 18.4°C at,
D