With this circuit, calculate the mesh currents given: V1=15 V,I1 =6 A,R1 =4 Ω,R =2 Ω:
A) Ia =3 A,Ib =6 A
B) Ia =2 A,Ib =4 A
C) Ia =6 A,Ib=3 A
D) Ia=4 A,Ib =2 A