There is a snowstorm in a certain town. In 30 minutes, 7 8in. of snow falls. It continues at the same rate for a total of 2 h. Which statement is true about the amount of snow in the 2-hour period?
A The number of inches of snow is 2 times 7 4 .
B The number of inches of snow is 4 times 7 4 .
C The number of inches of snow is 8 times 7 8 .
D The number of inches of snow is 30 times 7 8 .

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