Which of these is NOT a characteristic/quality of Realism?

According to the editors of your text, often what prevents Regional writers from falling into the category of “Realist” is 

The term “Gilded Age,” coined by Mark Twain and Charles Dudley Warner in their 1873 book, The Gilded Age: A Tale of Today, was an ironic comment on the difference between a true golden age and their present time, a period of booming prosperity in the United States that created a class of the super-rich.

In “Editha,” Editha’s love interest is

As a literary period, American Realism espouses a _________________ theory of art.

The protagonist in “A White Heron” is _________ .

In “A White Heron,” what does the ornithologist want to do with the bird? 

He — far more than any of his contemporaries — helped to create a a compelling vision of the West through a combination of romantic adventure and gritty realism.

Mark Twain became an overnight sensation when his story “Outcasts of Poker Flat” was published in  the Overland Monthly.

John Oakhurst, The Dutchess, Mother Shipton, and Uncle Billy are characters in a story written by