Is there options if not I would say government.
<span>After the panic of 1873, the pace of American overseas economic expansion happened very fast because of the second industrial revolution. The companies started to merge with each other and monopolize. This made the number of industries smaller but the size of them became huge making the expansion of business popular.</span>
"Fealty" also referred to the duties incumbent upon a vassal that were owed to the lord, which consisted of service and aid. One part of the oath of fealty included swearing to always remain faithful to the lord. ... Fealty and homage were key elements of European feudalism.
B : US department of defense
If I'm correct the answer would be D.