Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to install apps in elementary os [title] Connect to the internet. [step] This will allow you to download and install any apps, unless you are using offline repositories. [title] Open software center.

Ending1: [step] Once you connect, you'll be provided with the directory where a vast range of games are installed. Open it to see whether there are any games installed. Ending2: [title] Insert the 4-bit app into the update tray. [title] Leave the passcode, or security code for the application. Ending3: [step] Sign in with your apple id and password, and click " tools. " software center will open, and display a list of installed apps. Ending4: [step] If you have a shortcut to it in your dock, click on its icon there. In not, click on the' applications' launcher, and find and click on its icon there.

Answer format: ending1/ending2/ending3/ending4