Question

why might lower - income groups not participate more in the interest group system?
lack of awareness and information
political apathy
strong interest in participating
limited time and resources

Explanation:

Lower - income groups may lack awareness of interest groups due to limited access to information. Political apathy can stem from feeling marginalized or unheard. Limited time (due to multiple jobs) and resources (financial constraints for participation costs) also hinder their involvement. "Strong interest in participating" would likely lead to more engagement, not less.

Answer:

A. Lack of awareness and information, B. Political apathy, D. Limited time and resources