【单选题】
如图所示,根据基尔霍夫电流定律,下列方程错误的是()<br /> <img src="https://nimg.ppkao.com/2019-05/tangling/2019051414593855009.jpg?sign=0c10814af74493e08edf3b8f6de0ca5b&t=62d6e88a" />
A、I5+I6+I4 =0
B、I1+I2-I3 =0
C、I3-I5-I6-I1-I2 =0
D、I1+I2-I3-I4 =0