A technician is investigating unauthorized Wi-Fi access on a customer's home network. Individuals are able to access the customer's Wi-Fi network without a password. Which of the following is the MOST likely reason this situation is occurring?


A. Channel utilization is oversubscribed.
B. WPA2 exploits are being leveraged.
C. The Wi-Fi password is posted on the router.
D. The customer has a guest network enabled.