In this scenario, the correct response is:
Civil society institutions interact with the governmental sphere through legal governance.
This reflects how individuals and groups from civil society (the community) mobilize to influence government policies and practices, particularly regarding police training in this case. By lobbying the state government, they are participating in the legal and political processes that govern public policy, aiming to promote changes that address social issues, such as the incidence of police shootings involving minorities, thereby contributing to the public good.