As a part of a reverse engineering operation, you are attempting to

predict the $5-$bit numbers originating from a pseudo$-$random number

generator.

You speculate that the pseudo$-$random numbers are generated using

one of the three linear feedback shift register $($LFSR$)$ circuits illustrated

in the figure below $($circuits a$,$ b or c$),$ but you do not know which one.

The $5-$bit random number provided by the LFSR is given by the state of

the registers s$4...$s$0,$ with s$4$ representing the MSB of the random

number, and s$0$ representing the LSB of the random number.