In the book he is referring to, "Marketing Management" by Greg Marshall, Chapter 1 discses the relevance of Peter Drucker's key themes today, even though much of his writing was done decades ago. Which of the following statements is false regarding this information? A) The book mentioned is "Marketing Management" by Greg Marshall. B) Chapter 1 of the book discses the relevance of Peter Drucker's key themes. C) Peter Drucker's writing was done recently. D) The chapter makes a strong case for the relevance of Peter Drucker's key themes.