If you are using only one AudioSource at a time, you should first reduce the number of AudioSource variables to just one and play your audio clips on that single AudioSource. I didn't fully understand your reason for muting all of them at the same time—could you explain that part a bit more?

Additionally, you might prefer storing your AudioClips in a list. This way, you can use loops within the list for muting and playing them.

This makes the code much harder to read—maybe you can find a way to improve its readability.