I believe the answer is: A. De-escalation
At that time, the united states troops was losing on the battle of vietnam. The majority of united states citizens who originally supported the war started to voice up their concern and demanded the government to end the war. So Nixon created de-escalation policy to gradually pull united states troops from Vietnam.
At their beginning, the Arabs were an incredibly weak and loose collection of cities that could have easily been destroyed by Rome, yet the long peace with Rome led to prosperity, therefore B is the answer.
Answer: a. Democratic Party
Explanation:
The Democratic Party, as well as the Republican Party, is one of the major modern political parties in the US. The Democratic Party is the oldest active political party in the world, as it was established in 1828 Andrew Jackson´s supporters.
Following the Civil Rights Act of 1964 and the Voting Rights Act of 1965, the Southern states became mostly Republican supporters in presidential elections, while the Northeastern states became more reliably Democratic.
However, the border region that includes El Paso, McAllen, and Brownsville, has remained a Democratic Party bastion.
With out domestication, we would not have the current plant a and animals today. It allowed for tools and food for settlers.