Wich keyboard layout settings (KEY0103)

I need help concerning the layout configuration of the “Mini Wireless Bluetooth Keyboard with Touchpad, KEY0103”.
I have connected the keyboard to my raspberry pi via bluetooth without problems: the touchpad and normal keys are working well.
But for special characters like / - ? … I have to select the correct keyboard map.
I am using the standard noobs/raspbian setup and I want to set the keyboard Setting with raspi-config. There are a lot of different settings which I can choose from.
But which is the correct setting for this keyboard?