Take the following as truth: Undaunted, Chatterbox marched off to a nearby bookstore and purchased What the Face  Basic and Applied Studies of Spontaneous Expression Using the Facial Action Coding System (FACS) , edited by Ekman and Erika Rosenberg.
Then the following statement: "The book was on sale because it wasn't very popular." is true, false, or inconclusive?
Answer: Inconclusive