The circuit diagram shows a combination of logic gates. When inputs $P$ and $Q$ change to state $0$ with inputs $R$ and $S$ still at state $1$,the states of outputs $X$,$Y$ and $Z$ change to:

  • A
    $1, 0, 0$
  • B
    $1, 1, 1$
  • C
    $0, 1, 0$
  • D
    $0, 0, 1$

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