What is the correct use of go/no-go gauges?

What is the correct use of go/no-go gauges?

• A. A go gauge should not fit within tolerance; a no-go gauge should fit; used to verify dimensions.
• B. A go gauge should fit within tolerance; a no-go gauge should not; used to verify holes or threads.
• C. A go gauge measures surface roughness.
• D. A go gauge is used to check electrical continuity.

Answer: (B)