The answer is going to be d. hope that helped
c. caused the native americans to o develop immunity to european disease s
Answer:
Opposing sides were dug into trenches, which led to higher casualties and poor conditions for soldiers but they could rarely advance because of improved technologies such as machine guns which gave a tactical advantage to defensive forces and artillery.
Explanation:
The answer to the question is 1889 however it did not go smoothly
Any women who could read or write would be able to be trained as a physician.