A.S (Most Affordable Speed) is defined as the speed where the fuel consumption of a car is the lowest. The average family car consumes 3 liters of fuel per 36 kilometers at the M.A.S with only one passenger (the driver). A pickup truck consumes twice as much as a family car does. Assuming the fuel consumption of both cars rises by % of the original consumption for each additional passenger, how many km per litter would a pickup truck do if the driver has three additional passengers?
A. 10 km.
B. 5.8 km.
C. 6 km.
D. 5.4 km.
E. 4 km.
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