Final answer:
Discounts purchasing and health insurance are material benefits, offering tangible rewards, often through group memberships. Collective goods differ as they help all citizens and often need government intervention. Solidary benefits are related to social interactions within a group.
Therefore, option A is correct.
Step-by-step explanation:
Discounts purchasing and health insurance are examples of material benefits. These benefits provide tangible rewards to individuals or groups, often through group membership, and can include anything from discounted products and services to health insurance coverage that has either cost-saving advantages or provides protection against financial losses due to health-related issues.
As an example of a solidary benefit, the correct answer would be a. joining a group to be with others like you, which pertains to social interactions and relationships one gets through joining an organization. In contrast, collective goods, like public education or environmental protection, are benefits that help most or all citizens and often require government involvement, as private markets may not find them profitable to produce on their own. Lastly, purposive incentives appeal to someone's concern about a cause, such as environmental awareness or social justice campaigns.