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------------------------------------------------ The graph of a line relates the volume measured in gallons to its approximate equivalent volume measured in liters. Two points on the line are (0, 0) and (5, 19), where the value of x is the volume in gallons and the value of y is the approximate volume in liters.

According to the graph of the line, 12 gallons is equivalent to approximately how many liters?

A. 3 liters
B. 4 liters
C. 46 liters
D. 60 liters