Answer:
Group think bias
Step-by-step explanation:
Groupthink bias occurs when people believe in something because other people believe in it. It is when everyone comes to the same conclusion concerning a matter.
In the meeting everyone agreed with the CEO, this is an instance of groupthink.
Anchoring bias is when a person's decision is overly anchored on an initial information given when making a decision.
Confirmation bias is when a person arrives at a conclusion in line with their beliefs.
Availability bias is basing decisions on past instances that comes to mind when making the decision.
Hindsight bias occurs when people over estimate their abilities to predict how an event would have turned out in hindsight.