I think it's B
Hope this helps...
Answer:
Trade along the silk road.
Explanation:
Because the silk road spread for a very long distance it united people through trade and technological advancement came faster than ever.
A. The president fills the roles of head of state and head of government.
The Queen's role in politics is very small, as Britain has turned into a representative democracy.
It is shown in doors about mermaids,a one eyed monster,and God and goddess who ruled the earth, land, and sea
