Write the next sentence in the following story.

How to connect to mifi
Install the battery and sim card (if applicable) into your mifi device.
Power on your mifi device.
The mifi can be turned on by pressing the power button at the front of the device.

Pick from: A. Verify that the indicator light on the mifi device turns solid green. This indicates that the mifi is now connected to your wireless service provider's cellular network.. B. Input the code you entered earlier and press the start button at the front of the device to start mifi. Your new mifi device can be used on your cellular network so you don't have to worry about it getting stolen.. C. The device will power on without you setting any settings. Type in your registered address and tap on " next.. D. If there is a check box on the side, you can press the enter key. If there is no check box at the back, press the enter key... The answer should be
A.