Final answer:
Solidary benefits of interest groups include friendship and consciousness raising, which are intangible rewards from participating in a group with like-minded individuals.
Step-by-step explanation:
The solidary benefits of interest groups include friendship and consciousness raising. Solidary benefits refer to the intangible rewards related to the social aspect of group participation, such as camaraderie, the sense of belonging, and the satisfaction derived from working with others towards a common goal. When individuals join interest groups, they not only become involved in addressing specific issues but also gain a community of like-minded people who share similar values and beliefs.
The best example of solidary benefits is joining a group to be with others like you. This underscores the social incentives that drive individuals to become part of an interest group wherein the collective experience enhances personal satisfaction and supports the group's ideals or causes without necessarily providing tangible goods or services.