TNT,IncHad a Board Meeting to Discuss Future Investment Opportunities

TNT,Inc.had a board meeting to discuss future investment opportunities.Joe was a loud proponent of investing in Proton Corporation,so much so that nobody else got a word in edgewise.Many board members didn't really think investing in Proton was a good idea,but agreed to invest in Proton in order to keep Joe happy,and get the meeting over with.The board is exhibiting ________.

A) availability bias
B) anchoring bias
C) groupthink bias
D) confirmatory bias