Final answer:
The most appealing parts of Roosevelt's speech to Americans today are those that emphasize unity, courage, and faith in the face of economic challenges.
Step-by-step explanation:
The parts of Roosevelt's speech that would be most appealing to Americans today are the ones where he emphasized the importance of unity and cooperation, and instilled confidence and courage in the people. Roosevelt's famous line, 'The only thing we have to fear is fear itself,' would resonate with Americans today as a reminder to not be paralyzed by fear and to remain resilient in the face of challenges. Additionally, his calls to banish fear, have faith, and support the government's plan to restore the economy would appeal to Americans who are looking for leadership and solutions in times of economic uncertainty.