Which pair represents traditional methods or patterns used in making team decisions?

While groups generally make more effective decisions than individuals, they are susceptible to various biases. One such phenomenon is 'groupshift' (also known as group polarization), which is best described as:

Which of the following terms refers to the phenomenon in group decision-making where discussion leads members toward a more extreme view of the position they already held, moving the group toward either greater risk or greater caution?