Which of the following is untrue regarding PHD?

• A. It stands for Profile network from Heidelberg
• B. It is a web-based program that combines neural network only
• C. It first performs a BLASTP of the query sequence against a non redundant protein sequence database
• D. In initial steps it finds a set of homologous sequences, which are aligned with the MAXHOM program (a weighted dynamic programming algorithm performing global alignment)