C) The success in mobilizing a large grassroots base.
The most obvious connection between the 14th Amendment and the Civil Rights Act of 1866, is that they were both intended to help blacks and newly freed slaves be protected in the US.
Because inventing stuff is something that can be useful for the economy and if you create something helpful many people can use it and you can be solving peoples problems by inventing.
The declaration of independence included a list of grievances. In one of this, Thomas Jefferson wrote about the abomination that was slavery and condemned it. The Grievance describes slavery as disgraceful, miserable, and as a part of the most disgusting business.
In the Grievance, Jefferson also blames slavery upon King George III. He blames the King for introducing slavery into the Americas. Jefferson wrote: "Those disgraceful practices are the Warfare of the Christian King of Great Britain".
The main two countries during the cold war were the US and Russia