The correct answer is Daisy. In the novel "The Great Gatsby" by F. Scott Fitzgerald, Daisy Buchanan is driving the car that hits and kills Myrtle Wilson. This event occurs during a heated argument between Daisy and her husband Tom, who is having an affair with Myrtle. Daisy, in a state of distress, accidentally hits Myrtle while driving Gatsby's car. This incident sets off a chain of tragic events that ultimately lead to the downfall of several characters in the story.