I believe it is the last option... "Its political system cannot be easily changed.
Answer:
During 1920's America was at a peaceful and care free time. Many advancements in Technology, Music, and literature began booming.
Explanation:
The reason he coined the term the "Jazz Age" was due the 1920's being a period in time where a cultural and economic boom began to emerge.
Answer: kinda..
explanation: He dramatically expanded the system of national parks and national forests. After 1906, he moved to the left, attacking big business, proposing a welfare state, and supporting labor unions. ... Roosevelt mediated the Russo-Japanese War (1904–1905), for which he won the 1906 Nobel Peace Prize.