challenge: What are the two sources that the currently accepted taxonomy of Acidimicrobiaceae is based on?
  
  A. Tree of Life and Encyclopedia Britannica
  B. National Center for Biotechnology Information (NCBI) and Wikipedia
  C. List of Prokaryotic names with Standing in Nomenclature (LPSN) and Encyclopedia of Life
  D. List of Prokaryotic names with Standing in Nomenclature (LPSN) and National Center for Biotechnology Information (NCBI)
  Answer: 