Which of the following displays an electrical quantity as a numeric value?

A meter is a measuring instrument designed to display an electrical quantity, such as voltage (voltmeter), current (ammeter), or resistance (ohmmeter). Modern digital meters display these quantities directly as numeric values on an LCD or LED screen, while older analog meters use a needle pointing to a numeric scale. Other options are incorrect because they perform completely different functions in an electronic circuit. A potentiometer is a variable resistor used to adjust electrical levels, a transistor is an active semiconductor used for switching or amplifying, and a relay is an electrically operated switch. None of these components are used to display numeric values.