Questions: What does each level of the chain of command establish?

The answer is "filters."

Explanation for each option:

1. Bridges: This term typically refers to connections or links between different parts of an organization or system. In the context of a chain of command, "bridges" would imply facilitating communication or collaboration across different levels, which is not the primary function of each level in a chain of command.

2. Roadblocks: This term suggests obstacles or barriers that hinder progress or communication. While certain levels in a chain of command might inadvertently create roadblocks due to bureaucracy or inefficiency, this is not the intended purpose of each level.

3. Gateways: Gateways imply points of entry or access, allowing movement or communication to pass through. While this could be a function of certain levels in a chain of command, it is not the primary role of each level.

4. Filters: Each level of the chain of command acts as a filter by processing, interpreting, and passing information up or down the hierarchy. This ensures that only relevant information reaches the appropriate levels, and decisions are made based on filtered and refined data. This is the most accurate description of what each level in a chain of command establishes.