NEW YORK — Lauren Groff’s novel “Matrix,” the story of a 12th century royal outcast who combats the rule of men and other hierarchies, is among the finalists for an Andrew Carnegie Medal for fiction. “Four Hundred Souls,” a “Community History of African America” co-authored by Ibram X. Kendi and Keisha N. Blain, is a nonfiction nominee. Winners, each of whom receive $5,000, will be announced Jan. 23. The prizes are presented by the American Library Association, which helped found the honors in 2012. Previous winners include James McBride’s “Deacon King Kong,” Donna Tartt’s “The Goldfinch” and Adam Higginbotham’s “Midnight...