A.
Because
B is improve acting
C is impromptu
D is sight reading
The correct answer to this open question is the following.
Although there were no options attached, we can say the following.
The reason why permanent forts were established in the Oklahoma territory was that they served as military posts and headquarters. It was a time when notorious differences existed between white Americans and Native American Indians. Many legislations had been approved to move the Native Indians from their original lands and were moved to the Indian territory, modern-day Oklahoma.
Among the most famous forts built in the Oklahoma territory were the forts of Gibson, Reno, Davis, Towson, and Sill.
B there army’s conquered lots of territory. :)
The British Channel gave Britain a great advantage. At one point, the German Luftwaffe (air force) tried to invade the island, but the attempt failed and it was never attempted again
