Consider the circuit diagram in the figure. The equation that is not correct for that circuit of those listed below is:
a. 1–I1R1–I2R2=2
b. 3+I3R3–I2R2=2
c. 1 –I1R1 +I3 R3 =3
d. I1–I2=I3
e. -I1+I2 =-I3