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A clock signal with a period of 1 s is applied to the input of an enable gate. The output must contain six pulses. How long must the enable pulse be active?

  • A.Enable must be active for 0 s.
  • B.Enable must be active for 3 s.
  • C.Enable must be active for 6 s.
  • D.Enable must be active for 12 s.

Answer: C

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