I believe that they were actually labeled as observers. Or are there multiple choices.
A major feature of the restructuring period was that
<span>new legislation and constitutional amendments attempted to provide equal rights and opportunities for blacks the south. The aim was to maintain republican control of the house.</span>
B.many Americans loathed the idea of imperialism and saw it as a European phenomena, while others were very excited by the idea of imperialism and urged America to expand into other parts of the world
I would say BOTH primary AND secondary,
hope this helps :)