From the choices shown below, which of these equations appropriately describes the currents at Node V1, using Nodal analysis. 3 mA 1kΩ V2 3 k2 V V3 32k12 6 mA 4 kΩ Vi 2k + VI-V2 ik 3mA = 0 Vi 2k 3m A + V2 2K 0 3m A + V3-V + 3k V3 4k = 0 V-V lk 6mA + V-V3 3k 0