The main power base of a pressure group is

Step 1: Analyze the question The question asks what a pressure group's main source of power (its "power base") is. A pressure group is an organized body that tries to influence government policy without seeking to take over government.

Step 2: Explain the concept A pressure group's strength depends on:

• Membership and organization: how well structured and united it is
• Resources: funds, expertise, access to the media, and leadership
• Ability to sustain pressure: campaigns, lobbying, strikes, and petitions all need money and good organization

A group that is poorly organized and has no resources cannot influence government, however large its membership.

Step 3: Evaluate the options

• A. Its hierarchy of organization: This is only one part of its structure. It is too narrow.
• B. The recruitment process of its leaders: This affects leadership quality but is not the main source of power.
• C. Its level of mobilization: Mobilization matters, but it is an outcome of good organization and resources. It cannot happen effectively without them.
• D. Its degree of organization and resources: This is the most complete answer. It covers structure, funding, membership strength, and capacity to act. ✔

Step 4: Answer The correct option is D.

Exam tip: In Government questions about the "strength" or "power base" of a group, look for the option that is broadest and covers both structure and resources. Narrow options like "hierarchy" or "recruitment" are usually distractors. Remember: Organization + Resources = Power.