Final answer:
Informational social influence is more likely when the answer is unclear and when the group has expertise, leading to the conclusion that the correct answer is both b and c.
Step-by-step explanation:
Informational social influence is more likely under certain conditions where individuals are uncertain about the correct way to behave or what the truth is. This often occurs:
- when the answer is unclear, and people look to the behavior of others for guidance on what is correct.
- when the group has expertise, as people assume that the collective knowledge of a group is likely to be more accurate than their own, especially when the group is knowledgeable or skilled in a particular area.
Therefore, the correct answer is d. both b and c