The correct answer to the question is letter A. However, it is worthy to note the spelling is incorrect because it should be Agatha CHRISTIE and not Agatha Cristie. Born Dame Agatha Mary Clarissa Miller on September 15, 1890 in Torquay, Devon, England, she was best known as the creator of the following novels: The Hercule Poirot series which include The Mysterious Affair at Styles, The Murder on the Links, The Murder of Roger Ackroyd, The Mystery of the Blue Train, and the Murder on the Orient Express, to name a few; and The Miss Marple series which include the Murder at the Vicarage, The Moving Finger, and The Body in the Library, to name a few.
Ten Little Niggers was the original title of the book which was published in the United Kingdom on November 06, 1939 by Collins Crime Club. However, when it was finally released in the United States in December 1939, the title was then changed to And Then There Were None and the original title was replaced and retitled for all its subsequent reprints and adaptations.