Which Choice Below Correctly Rationalized Whether This Pair of Reactions $\Delta$

Which choice below correctly rationalized whether this pair of reactions is coupled?
A + B --> C + D ( $\Delta$ G = +5.4 kcal/mole)
D + F --> G + H ( $\Delta$ G = -4.4 kcal/mole)

A) The equations above do not represent coupled reactions because the overall $\Delta$ G is positive.
B) The equations above do not represent coupled reactions because the overall $\Delta$ G is negative.
C) The equations represent coupled reactions because the overall $\Delta$ G is positive.
D) The equations represent coupled reactions because the overall $\Delta$ G is negative.