PLEASE HELP ME ASAP
Why were Tang and Song China so culturally innovative?
Select one:
a. The emperor demanded constant innovation.
b. New inventions could be sold on the Silk Road.
c. The people demanded a higher standard of living.
d. These stable societies made scientific inquiry possible.

Who was the first explorer to sail all the way down the mississippi river

Why did countries not allow jewish refugees asylum?

Why were presidents andrew jackson and martin van buren unwilling to annex texas? a. they did not want texas to be admitted to the union as a slave state. b. they feared that the annexation of texas as a slave state would lead to political problems within the union. c. they thought that texas was too large to be admitted to the union as one state. d. they did not believe in the idea of manifest destiny.