According to quindlen what notion united american culture into a single whole?

The notion that united americans' different backgrounds and cultures in a single one is patriotism. She defines it as "taking pride in this  unlikely ability to throw all of us together in a country that across its length and breadth  is as different as a dozen countries, and still be able to call it by one name." It's what keeps America a single country, despite the different origins and backgrounds of its inhabitants.

it would be b. broad.

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~courtney

the autor of the text is bringing the point that one achievment of the president john f. kennedy was a success and this caused the next president to use a similar idea. the purposefor the use of the quotation in the text is to support the idea that peace corps was a result of the president's call. in this case, the quotation is presented as part of the writing and does not stand on its own.

answer a.