D. The Speaker of the House.
While technically it would be the Vice President, he does not usually spend anytime at the Capitol, so it would be the speaker.
They developed new political ideas by reflecting on the existing political institutions and the relations between the people in a society. They tried to come up with new ways to make things better that were heavily involved in ethics, epistemology, ontology, and a bunch of other philosophical ideas whose origins can be found in ancient philosophical works.
The Nazi Party convince (roughly) 99% of Germans and Austrians to support the annexation of Austria because Hitler made it clear that this land was historically German, and contained people of German blood.
Hope this helps!
-Payshence xoxo