Which geographical feature, made of large treeless areas and tall grass, can be found in the great plains of the u. s.?

Ithink the answer is b

It is the doctrine that the us had the right and duty to expand throughout north america. it just means they believed they had the right to expand westward and they did! they stated with the 13 colonies and then they kept moving gaining different territories throughout the years

"pacesetter of the south," comma inside the quotes

Ansradar; im guessing here; good luck : )