Kennedy implies that if countries work together, they can do more to achieve good in the world than if they worked alone. Which sentence best aligns with this idea?

Question

anonymous · Answer

"And so, my fellow Americans: ask not what your country can do for you—ask what you can do for your country."

 "In the long history of the world, only a few generations have been granted the role of defending freedom in its hour of maximum danger."

 "In your hands, my fellow citizens, more than in mine, will rest the final success or failure of our course."

 "My fellow citizens of the world: ask not what America will do for you, but what together we can do for the freedom of man."

anonymous · Answer

I think it is A. Can anyone confirm this?