In sensor outputs, how do NO and NC differ when activated?

In sensor outputs, how do NO and NC differ when activated?

• A. NO output goes off when the sensor is activated; NC output goes on when activated.
• B. NO output goes on when the sensor is activated; NC output goes off when activated.
• C. Both NO and NC outputs go on when activated.
• D. NO and NC outputs are used for the same function.

Answer: (B)