the lord gave their service for protection by knights
I believe the answer is: E. none of the above.
The turning point for our country was the American Revolution.
Without the revolution, we wouldn't be able to rise up and become a world leader like we are today, and would still lived for the service of The british Empire.
Strict constructionists and liberal constructionists differ in their attitude toward congresional power in that strict constructionists support a rigid interpretation; in this sense no right that is not expressly recognized should be awarded. Liberal constructionists support a broader interpretation.
1. Building a habit of spending less than you make
2. No effort needed after setup
Alfred Marshall is credited with first using cost benefit analysis