Final answer:
Members with strong team identification are less likely to act on self-interest, and their identification does affect their behavior, making both statements true. The team halo effect suggests teams may appear more effective than they are, and humans often consider both their own and others' interests. Collective action problems are less severe in small groups, with peer pressure being a significant factor, and informational social influence is likely when answers are unclear or the group possesses expertise.
Step-by-step explanation:
Members who identify strongly with their teams are indeed less likely to make decisions based solely on self-interest, which makes the first statement true. When team members feel a strong sense of belonging to their team, their actions tend to align with the team's interests and goals.
The extent to which team members identify with their team does affect how they think, feel, and act, so the second statement is also true. A strong identification with the team can enhance cohesion and improve overall team effectiveness but may also lead to downsides such as groupthink or overlooking individual inputs.
Concerning the effect of the team halo effect, it can cause teams to appear to work better than they do, option (a). This bias may lead to an overvaluation of the team's successes and an undervaluation of individual contributions to failures.
When making decisions, humans often consider the interests of both themselves and others, which is reflected in option (d). This demonstrates a balance between self-interest and the wider community impact.
In regards to collective action problems, they are indeed less severe in small groups due to factors such as stronger peer pressure, easier monitoring of individual behavior, and the reduced ability for individuals to free ride, making option (d) correct.
Informational social influence is more likely under conditions such as unclear answers and when the group has expertise, making option (d), which includes both, the correct choice.