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

The correct option is D TATA box
TATA box is sequence of nucleotides or nitrogen bases present in the core promoter region of the gene. Found in Archea and Eukaryotes, prokaryotic analog of the same is called the pribnow box

So, the correct answer is 'TATA box'