Gain of the amplifier is 'A'. Then the I/P impedance and O/P impedance of the closed loop amplifier shown below would be

• A. <img src="/_files/images/electronics-and-communication-engineering/analog-electronics/330-480-2.png">
• B. <img src="/_files/images/electronics-and-communication-engineering/analog-electronics/330-480-3.png">
• C. <img src="/_files/images/electronics-and-communication-engineering/analog-electronics/330-480-4.png">
• D. <img src="/_files/images/electronics-and-communication-engineering/analog-electronics/330-480-5.png">