Class AB Amplifier circuit on LTspice

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winter1620

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I currently worked on a homework that was turned in today and was told by my instructor that it was wrong, and one of the members had helped me and explained a bit <<<"a diff amp for input and complementary MOSFETs running in class AB mode with 5 volts total supply voltage(makes you have to select the right type of FET, and bias network, and this might be the most difficult hurdle), 40db open loop gain (not too ambitious a target), 1Mhz GBW">>>> if there is anyone that would be able to assist me on how this was supposed to be done, I would appreciate this, attached is a screenshot of how the schematic should have looked like and another screenshot of the homework. Thanks
 

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