Understanding Groupthink in Group Dynamics

Group dynamics can significantly influence individual behaviors and decisions within a social context. Consider a scenario where a decision-making group of colleagues is evaluating different strategies for an upcoming project. As the discussion unfolds, certain individuals begin to exhibit conformity to the opinions of the group, even if they initially had different views. This situation exemplifies the effects of group dynamics on personal decision-making. Which of the following concepts most directly explains why an individual might suppress their dissenting opinion in such a group setting?