Question

George, donna, and maria are on the five-member benefits task force that is researching options for the new benefits package. over lunch, george suggests that going with the members' choice hmo is the best course of action, and donna and maria agree with george for the sake of unanimity, without ever researching and accurately assessing the decision. george, donna, and maria are engaged in

Answer 1

I believe the answer is: Groupthink
Groupthink refers to a psychological occurence where members of a certain social group decided to conforming toward a certain point of view in order to fit-in to that group.
The likelihood of a groupthink to happen would increase dramatically if the group isolated themselves from other differing opiniton.