9. The PRE and CLR (preset & clear) inputs of a master/slave JK flip-flop overide the JK inputs

  1. Unconditionally.
  2. Only after the clock input goes high.
  3. Only after the clock input goes low.
  4. Only if J = 0 and K = 0.
  5. Only if J and K are not connected to anything.

3 is WRONG.

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