The Fourteenth Amendment. The Fifth Amendment has a due process clause as well, but the Fourteenth is the one that defines citizenship.
"Reconcentrados" for Cuban rebels can be linked to Commander Valeriano Weyler. So your answer is B. Hope this helped! :)
~Shadow
Africa, and fighting the British in the south....
Stump pullers, wheel barrows and shovels where used to build the erie canal