Passage Summary: People know when a sentence sounds right even if they can't explain the actual grammar rules behind it.

Reasoning: Native speakers can intuitively recognize correct grammar in their own dialect without being able to explain the specific rules that make it correct.

Analysis: The underlying principle is that functional mastery or intuitive recognition does not require the ability to articulate formal rules. To apply this principle, look for an answer choice where someone performs a task correctly based on 'feel' or 'intuition' but lacks the technical vocabulary to explain why. This is a common human experience—like being able to ride a bike without understanding the physics of angular momentum. The correct choice will mirror this gap between 'knowing how' and 'knowing why.'