What Is the Overall Standard Free Energy Change When the Following

What is the overall standard free energy change when the following two reactions are coupled?
A+ B $\rightarrow$ 2 C $\quad$$\Delta$ G_rxn = $\Delta$ G₁
C +D $\rightarrow$ E $\quad$ $\Delta$ G11eed8bd_ecf1_9d9b_a0ba_c5bb3a8ddbf6_TB6562_11=_rxn $\Delta$ G₂

A) ( $\Delta$ G₁ + $\Delta$ G₂)
B) ( $\Delta$ G₁ + 2 $\Delta$ G₂)
C) ( $\Delta$ G₂ - $\Delta$ G₁)
D) (2 $\Delta$ G₂ - $\Delta$ G₁)
E) ( $\Delta$ G₁ $\Delta$ G₂²)