D the United States it’s because
Number 12 is C and D
Number 13 is Vietnam
Number 15 is Korea
Number 16 is the fall of the Berlin wall
Number 17 is D
Answer:
Sacagawea was a Lemhi Shoshone woman who helped the Lewis and Clark Expedition in achieving their chartered mission objectives by exploring the Louisiana Territory. Sacagawea traveled with the expedition thousands of miles from North Dakota to the Pacific Ocean.
Explanation:
The creation of the GI bill and the Marshall plan for the nations.<span />