The Two Challenger Spacecraft Engineers Who Were Concerned About Possible

The two Challenger spacecraft engineers who were concerned about possible O- ring failure were unsuccessful at whistleblowing because they _________ .

A) tried to resolve the matter internally at Morton Thiokol
B) refused to use Morton Thiokol internal channels to address the matter
C) did not document problems with the O-ring
D) opted to contact the press before speaking with their superiors about potential problems with the O-ring