Which major publishing merger in 2013 created the world's largest book publisher, bringing together iconic literary imprints like Knopf, Doubleday, and Viking under one corporate umbrella?

The publishing industry has seen numerous consolidations over the years, with major houses joining forces to create powerhouse companies that control significant market share. These mergers have dramatically reshaped the landscape for authors, booksellers, and readers alike. Test your knowledge about one of the most significant publishing industry mergers in recent history that sent shockwaves through the literary world.

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Penguin Random House (merger of Penguin and Random House)
HarperCollins Hachette (merger of HarperCollins and Hachette Book Group)
Simon & Schuster Macmillan (merger of Simon & Schuster and Macmillan Publishers)
Bloomsbury Scholastic (merger of Bloomsbury Publishing and Scholastic Corporation)