Answer:
it has to be b because of the other ones are wrong
Answer:
A, They mapped the land and reached the Pacific Ocean, helping the US set claim.
Add-on:
I hope this helped at all. I'm sorry if its incorrect.
Answer:
The Orpheus theory, which says that a planet-sized body once collided with Earth and that it sent some of the material into orbit, forming the moon.
Gold is plentiful in Africa and is a necessity for most technological devices.
Answer:
12 years is the answer good luck sit
