Which of the following commands will update your Linux application sources?1 pointsudo apt full-upgradeinstall source.listsudo apt updateuname -r

The command that will update your Linux application sources is "sudo apt update". Here's a step-by-step guide on how to use it:

1. Open your terminal: You can do this by searching for "terminal" in your applications menu, or by using the keyboard shortcut Ctrl + Alt + T.

2. Type the command: In the terminal window, type "sudo apt update" (without the quotes) and press Enter.

3. Enter your password: After you press Enter, you'll be prompted to enter your password. Type it in and press Enter again. Note that you won't see any characters appear as you type your password - this is a security feature.

4. Wait for the command to finish: The command will now update your application sources. This may take a few minutes, depending on your internet speed and the number of updates available.

5. Close the terminal: Once the command has finished running, you can close the terminal window. Your application sources are now updated.