The graph shows the taxi fare, y, in a city, for a distance of x kilometers.



Which statement is true?

A.
The total fare changes by $4 per kilometer, and it will cost $28 for a distance of 6 kilometers.
B.
The total fare changes by $4 per kilometer, and it will cost $24 for a distance of 6 kilometers.
C.
The total fare changes by $3 per kilometer, and it will cost $18 for a distance of 6 kilometers.
D.
The total fare changes by $3 per kilometer, and it will cost $22 for a distance of 6 kilometers.