Passage Summary: A club made a list of all national rules except for tax and job laws. Since radio rules are national but aren't about tax or jobs, they must be on the list.

Conclusion: The City Club's guide includes radio airplay restrictions.

Reasoning: The guide covers all national regulations except tax and labor law, and radio restrictions are national regulations that fall into neither of those excluded categories.

Analysis: This argument uses a process of elimination within a defined set. We have a general set (national regulations), a subset that is excluded (tax/labor), and a specific item (radio restrictions) that belongs to the general set but not the excluded subset. Look for an answer choice that establishes a broad category, identifies specific exceptions, and then concludes an item is included because it fits the category but avoids the exceptions.