During transcription holoenzyme $RNA$ polymerase binds to a $DNA$ sequence and the $DNA$ assumes a saddle like structure at the point. What is that sequence called

  • [AIPMT 2005]
  • A

    $CAAT$ box

  • B

    $GGTT$ box

  • C

    $AAAT$ box

  • D

    $TATA$ box

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