A user is expecting a visit from a new customer, and the company's ADSL link has suddenly gone down. Which of the following should the user do to access a smartphone's 4G internet connection from the

Setting up a VPN creates a secure, encrypted connection to a private network, but it does not provide the underlying internet access itself.

Configuring a hotspot on a smartphone allows it to act as a wireless access point, sharing its cellular data connection (like 4G) with other Wi-Fi enabled devices, such as a laptop. This provides immediate internet access when the primary ADSL link is down.

Activating NFC (Near Field Communication) is used for short-range communication and contactless payments, not for sharing an internet connection with a laptop over Wi-Fi.

While some phones allow USB tethering to share internet, configuring a hotspot provides a more flexible and commonly used wireless method for sharing an internet connection.