What Would Best Describe the Concept of Groupthink

Multiple Choice

What would best describe the concept of groupthink?

A) a desired state where everyone looks at a problem the same way and reaches quick consensus
B) an unfavorable phenomenon of having too similar a mindset,making it more difficult to spot gaps or errors
C) a brainstorming session where everyone in the group is inspired to think creatively
D) a final commitment the team makes to fully support the decision of the team