Step 1: Identify nodes and assign a reference node. We have two main nodes in the circuit: The left vertical wire connecting points C, A, and E. Let's call this Node 1. The right vertical wire connecting points D, B, and F. Let's call this Node 2. Let's choose Node 1 (C-A-E) as our reference node, so its voltage is $V_1 = 0\,\text{V}$. We need to find the voltage at Node 2, let's call it $V_2$. Step 2: Determine voltages at known points relative to the reference node. Since Node 1 is the reference, $V_C =