With no explanation, label text_A→text_B with either "DON'T KNOW", "NO" or "YES".
text_A: In 1900, "Ben-Hur" became the best-selling American novel of the 19th century, surpassing Harriet Beecher Stowe's "Uncle Tom's Cabin". Amy Lifson, an editor for "Humanities", identified it as the most influential Christian book of the 19th century. Others named it one of the best-selling novels of all time. At the time of "Ben-Hurs one hundredth anniversary in 1980, it had "always been in print" and had been adapted for the stage and several motion pictures. One historian, Victor Davis Hanson, has argued that "Ben-Hur" drew from Wallace's life, particularly his experiences at Shiloh, and the damage it did to his reputation. The book's main character, Judah Ben-Hur, accidentally causes injury to a high-ranking Roman commander, for which he and his family suffer tribulations and calumny.
text_B: Could you have bought a new copy of the novel Ben-Hur in 1980?
YES.