A team of 5 directors decided to invest 700 million dollars in war-torn Ukraine right now. Many people (both inside and outside the organization) considered it to be an extreme decision. When these directors have been asked separately whether they would make the same decision had they been acting alone, and the answer was surprisingly a 'NO'! This phenomenon is known as: Select one: a. Group polarization b. Group shift c. Group dynamics d. Groupthink. e. None of the above