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What is the change in oxidation number o...

What is the change in oxidation number of carbon in the following reaction?
`C_(6)H_(6) + 15/2 O_(2) to 6CO_(2) + 3H_(2)O`
A) 1 to 4
B) -1 to 4
C) 0 to -4
D) -1 to -4

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