A.\(3,{31.10^{ - 7}}\left( {kg/C} \right)\)
B.\(3,{31.10^{ - 7}}\left( {g/C} \right)\)
C.\(3,{31.10^{ - 3}}\left( {g/C} \right)\)
D.\(3,{31.10^{ - 3}}\left( {kg/C} \right)\)

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