C. 250 years (I believe )
Improved the welfare of a society through appropriate social, political, and economic conditions
The Industrial Revolution, which began in Great Britain, ushered in a new era of economic prosperity for many people. Through higher employment rates in factories, the income of the average citizen rose. This income was then used to purchase goods, which required more factory workers, which further increased income.
1. The students took part in the Freedom Summer on 1964. The activity was for voter registration which was a part of a large effort by different civil right groups.
2. By Flexible response, Kennedy hope to prepare the nation to fight any size or type of conflict.