Final answer:
The speech excerpt highlights Kennedy's view of collective responsibility, where he recognizes the power of American citizens to transform the nation, aligning with his vision for a New Frontier.
Step-by-step explanation:
President John F. Kennedy's speech emphasizes the importance of collective responsibility and national service. He highlights the historical dedication of Americans to their country's ideals and suggests that the ultimate success of the country lies in the hands of its citizens. By doing so, the most accurate interpretation of how the excerpt redefines Kennedy's empathy towards the American people is option B: Kennedy is recognizing the power that all American people have to transform the nation into a more peaceful and progressive one. This interpretation aligns with Kennedy's vision for a New Frontier, wherein he expressed his desire for Americans to contribute to national progress and address both domestic and global challenges.