Multi-select problem: How does the next paragraph end?

How to pair a cell phone to a bluetooth headset
Charge your headset.
Starting with a full charge on both devices ensures that process won't be interrupted by a low battery.
Put your headset in " pairing mode.

Choose your answer from:
1). " this mode is app-specific that will hold up the phone wirelessly. Connect your headset to your mobile's bluetooth..
2). " a low battery puts your headset in " pairing mode. " by pairing you can safely switch between both devices..
3). " this mode allows your headset to be charged on both devices while simultaneously neutralizing the data held by the headset. This mode takes around 6 hours, and you must be listening and maintaining online communication to use the device..
4). " the process is similar across all bluetooth headsets, but there might be slight variations depending on model and manufacturer. For almost all headsets, this is done by starting with the headset power off, then pressing and holding the multi-function button (the button you press to answer a call) for a few seconds..
4).