please tell me correct answer with reasons

Q$.4$ In figure, assume that initially $Q=1.$ With clock pulses being given, the subsequent states of $Q$ will be

$($a$)1,0,1,0,1,0,1$

$($b$)0,0,1,0,0,1,0$dots

$($c$)1,1,0,1,1,0,1$

$($c$)0,1,0,1,0,1,0$dots