What can a multimeter be used to measure?

A multimeter is a versatile instrument commonly used in electrical work for measuring various electrical properties. The correct answer indicates that it can measure voltage, current, and resistance.

Voltage measurement allows the user to assess the potential difference across components in a circuit, helping determine whether a circuit operates within its specifications. Current measurement is critical as it indicates how much electric charge is flowing through the circuit at any given moment, which is essential for diagnosing issues or ensuring safe operation. Resistance measurement is fundamental in checking if components, such as resistors, are functioning correctly and to test for continuity in circuits.

While some options include measurements beyond these three, such as frequency, a standard multimeter generally focuses on voltage, current, and resistance. More advanced multimeters may include frequency measurements, but it's not a universal feature of all multimeters, making the focus on voltage, current, and resistance the most widely applicable and correct answer.