Which of the following can be inferred from the table? 　　I The apparent temperature for an actual temperature of 20 degrees Fahrenheit and a wind speed of 15 miles per hour is the same as that for an actual temperatrue of 60 degrees Fahrenheit and a wind speed of 40 miles per hour 　　II At a constant wind speed as the actual temperature increases the difference between the actual and the apparent temperatures also increases 　　III At a constant actual temperature of -10 degrees Fahrenheit the apparent temperature decreases at a constant rate as the wind speed increases 　　(A) I only 　　(B) II only 　　(C) I and III only 　　(D) II and III only 　　(E) I, II and III