The temperature increased steadily from 6 AM to 2 PM. What will the graph of the data look like?
A.
a horizontal line, moving from left to right
B.
a line that slants down in a steep manner, moving from left to right
C.
a line that slants up in a gradual manner, moving from left to right
D.
a line that slants down in a gradual manner, moving from left to right