Your answer to your question is A ;)
Answer: Unalienable rights
An added note of explanation:
You'll see both "unalienable" and "inalienable" used in description of these sorts of rights that cannot be taken away because they are not granted by man but are ever human being's natural possession. In the final version of the <em>Declaration of Independence, </em>the spelling <em>unalienable </em>was used. That was the copy of the document as transcribed by John Adams, which was used for printed copies to be made. Thomas Jefferson's original draft used the spelling <em>inalienable</em>. The two variations of the word were both in use at the time in the 18th century. Either way, the word means something that cannot be made alien to you -- in other words, something that is naturally your possession and cannot be taken away from you.
Explanation:
A variety of factors led to the Collapse of the Reconstruction period. Factors such as the Supreme Court rulings. These involved extremely short sighted - and limited rulings involving the civil liberties of African-Americans.
Another defining factor was the weakening and eventual end of the Freedman's Bureau. The FB had worked as a support for the recently freed slaves.
The shift from the radical Republican representation in Congress to the Liberal/Republican party led to the collapse as well given their party was not as interested in showing support to the slaves who had been recently freed.
All in all, there are 4 primary factors that can be designated to have affected the Reconstruction causing it to fail.
1) <u><em>Violence from Confederate loyalists.</em></u><em> </em>This placed African-Americans and supporters in danger.
2) <em><u>Thousands of white plantation owners suffered from extreme poverty. </u></em>War expenses & deconstruction, debates against contracts of labor and the increasing dependence on credit all led to the eventual demiste of the Reconstruction era.
3) <em><u>Non-effective Law Enforcement practices. </u></em>It was a period of violence given the lack of effectiveness in the LE field to control the racial violence and the revolts from the people.
4) <em><u>Decline in national interest. </u></em>The nation was ready to leave behind the uncertainty and questions that plagued their everyday lives involving the Civil War. They sought to return to a normal life - to normalcy. This affected the support they could have given to all of the Reconstruction efforts.