Explanation: Capacitance is the ability of a component, like a capacitor, to store an electrical charge. The fundamental SI (International System of Units) unit for capacitance is the **Farad (F)**. One Farad is defined as one Coulomb of charge stored per volt across the capacitor. In practical electronics and amateur radio, a Farad is a very large unit of capacitance. Therefore, smaller prefixed units are commonly used. The **Microfarad (µF)**, which is one-millionth of a Farad (10⁻⁶ F), is a very common unit found in many circuits. Nanofarads (nF) and Picofarads (pF) are also frequently encountered for even smaller capacitances. Since both Farad and Microfarad represent units of capacitance, they are both correct. **Coulomb (C)**, on the other hand, is the unit of electric charge, not capacitance. While related to capacitance (Q=CV, where Q is charge in Coulombs, C is capacitance in Farads, and V is voltage in Volts), it measures the quantity of charge itself, not the ability to store it.