The NASA personnel who were in charge of the space shuttle launch had clear evidence that freezing temperatures could pose a problem for the shuttle, but they chose to ignore the evidence and proceeded with the launch anyway. The process that would BEST explain why the launch went ahead, even though there was evidence that indicated it should be delayed, is

A) group polarisation.
B) reciprocity.
C) groupthink.
D) collectivism.

Groupthink is the process where a group of people make a decision without critically evaluating or considering alternative options. The NASA personnel in charge of the space shuttle launch were likely influenced by groupthink and felt pressured to proceed with the launch despite the evidence indicating it should be delayed. They may have felt that delaying the launch would be viewed as a failure or that they would lose credibility if they changed their decision.