READ THE FOLLOWING PARAGRAPH AND CHOOSE THE IRRELEVANT SENTENCE. (I) By 1984, NASA, the United States space program, had carried out many successful flights of the space shuttle. (II) In fact, Americans were beginning to take the whole NASA program for granted. (Ill) Then, the president announced that the next shuttle would carry a school teacher into space. (IV) Hundreds of teachers from all parts of the country applied for the job. (V) Early in the morning, the challenger crew had a good breakfast and discussed their plans.