The correct answer is A. Tethering.
Tethering is the process of sharing a mobile device’s internet data connection with other devices, such as laptops, tablets, or other phones. Tethering can be done by using a Wi-Fi hotspot, a Bluetooth connection, or a USB cable. A Wi-Fi hotspot creates a wireless network that other devices can join, a Bluetooth connection pairs the devices and allows data transfer, and a USB cable connects the devices physically and enables data sharing.
A PAN, or personal area network, is a type of network that connects devices within a short range, usually up to 10 meters. A PAN can be used for various purposes, such as transferring files, printing documents, or accessing the internet. A PAN can be created by using Bluetooth, Wi-Fi, or infrared technologies.
A technician can use a PAN to connect a group of users on a field project by using tethering on a mobile device. The technician can activate the tethering service on the mobile device and choose the preferred method of sharing the internet data connection. The other devices can then connect to the mobile device and access the internet through it.
The other options are incorrect because they are not services that can share the internet data connection on a mobile device. Pairing is the process of establishing a connection between two Bluetooth devices, but it does not necessarily share the internet data connection. Bluetooth is a technology that can create a PAN and enable tethering, but it is not a service that can be activated on a mobile device. Hotspot is a term that can refer to a Wi-Fi hotspot created by tethering on a mobile device, but it is not a service that can be activated on its own.
[References:, Share a mobile connection by hotspot or tethering on Android, How to share a mobile connection by tethering or hotspot on Android, How to Share Mobile Internet to PC or Other devices, , , , ]
