Which statement best describes the difference between a promoter and an enhancer in gene regulation?

Which statement best describes the difference between a promoter and an enhancer in gene regulation?

• A. A promoter is the DNA sequence where RNA polymerase binds to initiate transcription; enhancers are distal regulatory elements that increase transcription by looping to promoters via protein mediators.
• B. Both are binding sites for RNA polymerase and function identically.
• C. A promoter acts far from the gene; an enhancer is the site where transcription starts.
• D. Promoters regulate translation; enhancers regulate splicing.

Answer: (A)