Which California initiative in the 1970s focused on community college access for all students?

Proposition 98, passed in 1988, was instrumental in guaranteeing a minimum level of funding for K-12 schools and community colleges in California. While it was not initiated in the 1970s, its effects were aimed at ensuring that access to community college education was a priority within the state's educational funding framework. As a result, it helped to expand access to education for a broader range of students, including those from lower-income backgrounds, which aligns with the initiative's goals of improving educational opportunities.

The other propositions listed do not focus specifically on community college access. Proposition 7 dealt with energy-related issues, Proposition 209 aimed to eliminate affirmative action in state programs, and Proposition 65 revolved around requiring warnings for toxic substances, none of which pertain to community college access. Thus, Proposition 98 effectively embodies the focus on community college access by ensuring that educational funding is secured, facilitating wider access for all students.