Which of the following, if true, most seriously weakens the argument? A. The face of the Sphinx bears a resemblance to the faces on certain stylized statues dating from both before and after the reign of Khafre. B. Other erosion patterns that appear on the body of the Sphinx are of a sort that could be caused by wind and sand alone C. Other than the Sphinx, there are no surviving sculptures that have been claimed to portray the face of Khafre. D. In the last 10,000 years the climate of Egypt has been so dry that even rains that are not heavy have been extremely infrequent. E. The face of the Sphinx is small relative to the rest of the head, indicating that the face may have been recarved long after the Sphinx was built.