Lynn wants to predict how much fuel her car will use based on its speed. She drove a car 100\,\text{km}100km100, start text, k, m, end text at each of the speeds below, and she measured how much fuel was used in each case. Her data is summarized in the graph below.
Choose 1

A
Driving at higher speeds always resulted in less fuel being used.
B
The amount of fuel used was lowest at speeds around 60 km/h

C
None of the above