Task: Text Completion
Input (English): [header] How to use a bluetooth device [title] Understand how bluetooth works. [step] Bluetooth is a wireless technology that allows two different devices to connect. Every bluetooth device has one or more profiles installed. <sep> (A) For example, you have a facebook messenger account, your mobile device has a pms account, and your business has a apple account. [title] Download the app that you want to use for personal calls. (B) To connect, press and hold the home button of the device you want to connect to. This will prompt some options, such as " disabled, " " regular, " or " local. (C) The profiles feed is outlined in the settings panel and is a snapshot of the most commonly used devices. [substeps] Connect a bluetooth cable to one of your devices and turn the device's bluetooth feature on to available. (D) These profiles determine what the device is capable of, such as " hands-free " (mobile headsets) or " human interface device " (computer mouse). In order for two devices to connect, they must both have the same profile.
Output (English): D