The answer is canoes, evidence found by Scientists indicates that Old
Stone Age people traveled across the open ocean in canoes, possibly up
to 70,000 years ago. They had no navigational instruments to speak of,
so this was a perilous journey and undoubtedly many would have been
lost on the way.
There are the purposes to inform, and to persuade.
It is probably (a) because it is all about manufacturing new things and (d) doesn’t really make sense because it doesn’t mention other nations, i hope this helped :)
I believe it’s B. hope this is right and helps you !