Which of the following is incorrect regarding Cluster-Buster?

• A. It is an HMM-based web-based program
• B. A query sequence is scanned with a window size of 1 kb for putative regulatory motifs using motif HMMs
• C. It works by detecting a region of high concentration of unknown transcription factor binding sites and regulatory motifs at the initiation
• D. It is designed to find clusters of regulatory binding sites