For the first question I believe is D, and the second question I think is D as well
Through humor such as in the newspapers that made fun of Hoover villes
Answer:
b.
Explanation:
It wouldn't be A because they all aren't scientific discoveries.
It wouldn't be C because barbed wire and windmills do not fall under the communication category.
It wouldn't be D because windmills are not transportation.
The best statement regarding the impact of Valley Forge on the American Revolution would be that "<span>b. After the hardships of Valley Forge, the American army was stronger, prouder, and better trained," since the Continental troops had endured some of the harshest conditions of the entire war. </span>