Question: To reset a router.

  Options: 
 A. Unplug it (or use it's power button if it has one) and make sure it is without power for at least 30 seconds before plugging it back in.
 B. Unplug it (or use it's power button if it has one) and make sure it is without power for at least 03 seconds before plugging it back in.
Answer: A