|Question 18Verbal

Source Texts

Text
Water boils at at around sea level, but in Highland, Utah (elevation: 4,977 feet above sea level), it boils at around        food writer J. Kenji López-Alt points out, lower boiling points at higher elevations "can wreak all sorts of havoc on recipes."
Which choice completes the text so that it conforms to the conventions of Standard English?
. as
A
as
B
as
C
. As
D