One "Design Principle" That Makes Informal,community-Based Solutions to Public Goods

Multiple Choice

One "design principle" that makes informal,community-based solutions to public goods and common resource problems more effective is:

A) clear distinctions between who is and is not allowed to access the resource.
B) the participation of resource users in setting the rules for use.
C) the ability of users to monitor one another.
D) All of these are important to the effectiveness of community-based solutions.