Question about C: Dawn of the mankind

I have few yea or no questions, couse I can't find clear answers in rulebook on my language, might have been lost in translation and ChatGPT confused me even more.

1. Can you transform an explorer to settlement the same turn U moved him to settlement spot?
2. Can you build new explorer from the settlement the same turn U made that settlement?
3. Can you move the explorer the same turn U build him?