People who are from similar backgrounds and from similar sectors of the company tend to have a set of familiar ideas and work with the same set of unspoken assumptions

This mindset may lead to rejecting different ideas without fair examination. What is this phenomenon called?
A) ignoring randomness bias
B) overconfidence bias
C) analysis paralysis
D) group think
E) prior-hypothesis bias

Answer: D
Explanation: D) Group think, or uncritical thinking, can be disastrous in brainstorming sessions.