Match the following: List I List II A. IF amplifier 1. Amplifier frequencies in the range of 100 kHz to 5 MHz. B. RF amplifier 2. Current in the output flows only during a portion of the positive half of the input cycle C. AF amplifier 3. Amplifier frequencies in the range of 0 Hz to 5 MHz D. Class operation 4. Amplifier frequencies in the frequency range of 40 Hz to 15 kHz.

• A-4, B-1, C-3, D-2
• A-3, B-1, C-4, D-2
• A-2, B-3, C-1, D-4
• A-1, B-2, C-3, D-4