In closed circuit ABDA which equation is correct according to Kirchhoff's voltage law?

A \( 5 \mathrm{i}_{1}+100 \mathrm{i}_{\mathrm{g}}-10 \mathrm{i}_{2}=0 \)

B \( 5 \mathrm{i}_{1}+100 \mathrm{i}_{\mathrm{g}}-10 \mathrm{i}_{2}=1.5 \)

C \( 5 \mathrm{i}_{1}+100 \mathrm{i}_{\mathrm{g}}+10 \mathrm{i}_{2}=0 \)