Three configurations, labeled Case 1, Case 2, and Case 3, each consist of two long, straight parallel wires carrying currents of equal magnitude \(I\). In Case 1, the wires are separated by distance \(d\) and carry currents in opposite directions. In Case 2, the wires are separated by distance \(d\) and carry currents in the same direction. In Case 3, the wires are separated by distance \(2d\) and carry currents in opposite directions. Which of the following correctly ranks the magnitude of the net magnetic field \(B\) at the midpoint between the two wires for each case?