Final answer:
The 'storming' phase refers to the period where team members experience stress from uncertainties and conflicts as they learn about one another and define their respective roles. In contrast, a 'reference group' is a social group that influences an individual's standards, norms, and behaviors. Option b is correct.
Step-by-step explanation:
The function of storming refers to team members experiencing stress due to the uncertainty of not knowing the other team members and understanding their role on the team. During the storming stage of team development, individuals often encounter conflicts and challenges as they try to establish their positions within the team. There can be disagreements on directions or competition for team roles, which leads to the stress identified in the question. The goal for the team is to move beyond this stage by resolving conflicts and establishing a clear group structure and roles.
On the other hand, a reference group is a social group that a person looks to for standards and values that will shape their behavior. When considering options for one's conduct or beliefs, the standards of the reference group serve as a benchmark or point of comparison. During the forming stage of team development, team members are just getting to know each other and establishing ground rules. This can create stress and uncertainty as individuals try to figure out their place within the team.