Final answer:
The informational function is the social influence where individuals look to others for guidance in unclear situations, specifically option 2 from the given choices.
Step-by-step explanation:
The informational function refers to the type of social influence where an individual looks to others when deciding how to act in ambiguous or unclear situations. Among the options given:
It is the role of the group in setting behavioural standards based on fear of ostracism.
It is the function whereby an individual looks to others when deciding how to act in unclear situations.
It is the role of others in establishing social norms based on fear of rejection by the group.
It is the function whereby you compare your present actions to those from unambiguous, past situations.
The correct definition is number 2. This kind of social influence occurs because the individual believes the group has the correct information or is competent enough to be followed, especially when the situation at hand isn't clear. This is separate from the normative social influence, where conformity to a group norm is motivated by a desire to fit in and be accepted by the group. Social roles and norms also play a pivotal part in this process, as they guide our behavior in various roles and across different situations.