3G:3G is the third generation of wireless mobile telecommunications technology. It is based on a set of standards used for mobile devices and mobile telecommunications use services and networks that comply with the International Mobile Telecommunications (IMT-2000) specifications. 3G is a long-range wireless technology. Some activities that require high bandwidth cannot be carried out by using 3G. Each generation is characterized by new frequency bands, higher data rates, and non-backward-compatible transmission technology. Bluetooth:Bluetooth is a wireless technology standard used for exchanging data between fixed and mobile devices over a short distance using UHF radio waves in industrial, scientific, and medical radio bands. Bluetooth is a low-cost means of data transfer. Bluetooth replaces the cables connecting electronic devices, allowing people to have conversations with a headset, use a wireless mouse and synchronize information from a mobile phone to a PC. Therefore, option 1) is the correct order of words.