Which of the filter topologies in Figure 1 are not suited for an all-pole filter synthesis? Also, briefly explain why not

1a) Can you realize different all-pole (*) prototype functions by using the same circuit structures? [max. 0.5p]1b) Suppose your friend says he is designing an analog filter that realizes a fifth-order bandpass transfer function based on Chebychev prototype. What would be your brief and friendly advice? [max. 0.5p]1c) The circuit in Fig. 1b: How would you attenuate the passband gain by 6 decibels without adding another RC op-amp stage? [max.2p](*) All-pole means no zeros in the transfer function.

Butterworth filter POLES lie along a circle and are spaced at equal angular distances around a circle.Select one:NOT always TRUETRUEFALSE

Butterworth filter POLES lie along a circle and are spaced at equal angular distances around a circle.Select one:TRUENOT always TRUEFALSE

A stable, causal FIR filter has its poles lying anywhere inside the unit circle in the z plane :Select one:TrueFalse

The filter whose TF of the system is  isSelect one:a. All pass Filter  b. High pass Filterc. Low pass Filterd. Band pass Filter