The main power base of a pressure group is
- its hierarchy of organization
- the recruitment process of its leaders
- its level of mobilization
-
its degree of organization and resources
The correct answer is: D
Explanation
A pressure group's effectiveness and influence often stem from how well it is organized and the resources it can leverage. This includes factors such as the group's ability to mobilize members, its financial resources, access to media and public relations, legal expertise, and overall organizational structure. While aspects like hierarchy, leadership recruitment, and mobilization are important components, they typically derive their strength from the group's overall organization and available resources.