Final answer:
To connect his new phone to his Wi-Fi network, Bill can use a router, which also typically provides Wireless Access Point functionality for wireless connections. VPNs and switches do not serve the purpose of initially connecting a device to a Wi-Fi network. The correct answer is option c. VPN
Step-by-step explanation:
When attempting to connect a new phone to a Wi-Fi network at home, several devices or components could be involved. The correct answer to which device Bill can use to connect his phone to his home network is a router. A router is designed to manage and forward data on a network and includes the capability to provide Wireless Access Point (WAP) functionality.
This allows devices, such as smartphones, to connect to the internet wirelessly. A Wireless Access Point, as a standalone device, also allows wireless connection but is typically connected to a router. A Virtual Private Network (VPN) is a service that creates a secure connection over the internet but does not facilitate the initial Wi-Fi connection. A switch, on the other hand, is used to connect various devices on a network using Ethernet cables and does not provide wireless connectivity.