In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".

[header] How to unlock an android phone without a touchscreen [title] Connect your android phone to a car dock. [step] Take the data cable of your car dock and plug it into the cigarette lighter port on your car dashboard. Connect your android phone to your car dock. <sep> (A) [title] Press on the left joystick to open your car's dashboard menu. [step] Go to " settings " and tap on " bluetooth. (B) [substeps] If it's turned off or has no battery, you may need to wait for a while before it switches on. [title] Wait for your phone to switch to multimedia mode. (C) [substeps] The lighter port is usually located behind the battery compartment. You can reach this port from the driver's door side of your vehicle. (D) You can only have one cigarette, so keep a spare change for how many you have. [substeps] Your phone should now have an active battery.
B