Apollo sexually assaulted Creusa, who gave birth to a son in a cave. Creusa then left her son in the cave and married Xuthus. However, she was unable to have children with him. She consulted with the Oracle of Delphi, who told her that the first boy she and Xuthus met would be their heir. They found the boy, Ion, who became their heir. Why did Creusa plot to kill Ion? A. because he had a lot of money B. because he helped in the temple C. because she had abandoned her son D. because she was pregnant with a son of her own