For the Op$-$Amp circuit and the frequency response shown below, determine:

a$)$ The open loop gain of the Op$-$Amp in decibels $($dB$).$

b$)$ The closed$-$loop bandwidth.

c$)$ For the case of part $($b$),$ determine the required Slew rate specification for the Op$-$Amp necessary to accommodate an input sinusoidal signal of amplitude up to $1$ Vpeak without slew rate distortion at the output over the full closed loop bandwidth.

d$)$ When the amplifier shown below is operated in common mode, the output peak to peak voltage is $20m{V}_{p-p}$ for an input signal of $10m{V}_{p-p}.$ Determine the CMRR of the amplifier in Decibels.