How to publish free unity game to Google Play?

Questions & Answers
1

I have several questions:

  1. Unity gives a default company and youtube tutorials shows the guys always enter a company name. Must I do the same although Im a solo developer? do I enter a random name?
  2. One tutorial shows that there is no need to change the api level (the default is the highest installed) where as another tutorial shows that you must change the api level to Google Plays (current level 31)
  3. In the Google Console there is a privacy policy url, what is that and must I provide one?
  4. There is an option to tick whether your game have ads, does it mean that other can insert ads into the game or something I provide?, also is it recommended although my game is pretty simple
2

there is an youtube video that show u how to add ads and build ur project and how to uploud it on Google Play by (details) but its with an arabic if u want it that is the URL

that for adding ads

and that for buildin and uplouding on Google Play
have a nice day