Step 1: Understanding the Concept:
Plans are categorized into several types based on what they aim to achieve: Objectives, Strategies, Policies, Procedures, Methods, Rules, Programmes, and Budgets.
Step 2: Detailed Explanation:
1. Policy: A general guide to thinking (e.g., "We do not hire relatives").
2. Programme: A mix of goals, policies, and procedures for a specific project.
3. Method: The specific "how-to" for a single step of a task.
4. Strategy: A broad plan that accounts for what competitors are doing (business environment).
Step 3: Final Answer:
Matching these results in (b).