Which data block lists prerequisites before starting a task?

• A. Tools and materials
• B. Prerequisites
• C. Steps
• D. References and notes

Answer: (B)

Before starting a task, you need to know what conditions, permissions, and resources must be in place. The prerequisites data block does exactly that: it lists the requirements you must meet or have on hand before you begin, so you can verify readiness and avoid interruptions. Tools and materials tells what you will use, but not what must be secured beforehand. Steps describe the action sequence to perform, and references and notes give supplementary information or sources. So the prerequisites block is the one that sets up the starting conditions for a task.