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The basic sequential logic building block in which the output follows the data input as long as the ENABLE input is active is—
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- J-K flip-flop
- D flip-flop
- T flip-flop
- D latch
Correct Option: D
As we know that latch is level triggered while flip-flop are edge triggered. Therefore in D latch the output follows the data input as long as the ENABLE input is active.
Hence alternative (D) is the correct choice.
