Which circuit configuration allows for power to be distributed selectively to devices in a control system?

A parallel circuit configuration allows for power to be distributed selectively to devices in a control system because each device is connected across the same voltage source independently. This means that any device can be powered or turned off without affecting the operation of others, providing flexibility in how devices are managed. Since each device receives the same voltage and operates independently, it is possible to selectively control power distribution, making it easier to maintain and troubleshoot the system.

In contrast, a series circuit connects devices in a single path; if one device fails or is turned off, the entire circuit is interrupted, affecting all connected devices. Combination circuits can integrate both series and parallel elements, but they do not inherently provide the same level of selective power distribution that a parallel circuit does. A complex circuit typically involves multiple components and control strategies, which may make it harder to manage simple selective power distribution effectively. Thus, for the goal of selective power distribution, the parallel circuit stands out as the optimal choice.