If you're looking for a research paper or an essay on the movie "US" (2019), I can try to provide you with some information or a summary of the movie. Alternatively, if you're looking for a fix related to a technical issue with the movie's audio, I can try to provide some general troubleshooting steps.
There is no official “B Fix” from Universal Pictures. The term exists only in pirate circles. If you see a file labeled Us.2019.1080p.Dual.Audio.Hindi.English.B.Fix.mkv , it’s a user-re-encoded version. download us 2019 dual audio hindienglish b fix