A logger clears a forest and the forest re-grows over many years. Which of these choices is likely to represent pioneer?

Cuz i said so. which gives it to b

3. is true i think i should be right

It might. it might because if you think about if they discovered if we came from (lets say something funny like aliens) and thy found cells that matched and they would have t do more research about it but would most probably change their theory.