Problem: Which of the following best explains why the witnesses are upset?
A The UFO left "an eerie hole in the overcast skies" after flying through the clouds over O'Hare.
B No air traffic controllers saw the UFO and there is no record of anything out of the ordinary on radar.
C The airline denied having knowledge of the UFO and the FAA not investigate the incident further.
D The FAA admits that its air traffic control tower received a cal about "a mysterious elliptical-shaped craft.