'7. The German engineers who built largescale ovens during World War II (used by the Nazis to get rid of their victims' bodies) tended to justify their actions by claiming: \"We were engineers, so we developed whatever the military needed, and we did it to the best of our abilities. That's what a good engineer does." Which one of the following best explains the engineers' irrational thinking? A. False consensus effect B. Overoptimism C. Role morality D. Sunk costs E. Timedelay trap