POLL: Which ending would you prefer for United Breathing Style?

Hello, everyone!!! What a great movie!! I'm not a big fan of divided it into more parts, but okay.
After discussing it for a while, these are the endings I want to work on. If you have any ideas or suggestions about the endings, I'll read them in the comments.

1. In the fight against Muzan, Tanjiro easily defeats him with the power he has acquired. Later out of the infinity castle, using an ancient text that Muzan had, they manage to return Tanjiro to normal, freeing all the girls he had absorbed and even turning the demons back into humans...

2. In the fight against Muzan, Tanjiro defeats Muzan, but before finishing him off, Tanjiro forces him to transform into his female version. Tanjiro absorbs Muzan, but the power is too much. Tanjiro is completely transformed into the new Demon Queen, thus completing Muzan's mission to destroy the sunlight...

3. In the final battle, Muzan escapes, rendering all efforts to find the base futile. Everyone returns to the headquarters of the Demon Slayer Corps, where, seeing Tanjiro's potential to have many powerful children, they decide that she should have many half-human, half-demon successors. And so Tanjiro becomes the new great mother of the demon slayers...

4. In the final battle, before being defeated, Muzan uses a Blood demon art and tries to separate Tanjiro from the girls he had absorbed, He succeeds!, but Tanjiro does not return to normal. Having been combined with them for so long, Tanjiro remains a girl, only smaller in size, including her chest. Together with the hunters, they finish defeating Muzan and all leave happily...

5. In the final battle, Muzan seriously injures Tanjiro, using his blood to enter Tanjiro's body and take control of it. Muzan kills all the demon hunters and, using Tanjiro's body is now immortal and controls the world of humans...