Pathogenic Bacteria Isolated from the Respiratory or Intestinal Tracts of Humans

Pathogenic bacteria isolated from the respiratory or intestinal tracts of humans are

A) strict aerobes that grow best in candle jars.
B) capnophiles that grow best in carbon dioxide incubators.
C) facultative anaerobes that require reducing media for growth.
D) strict aerobes that grow best in reducing media.
E) capnophiles that prefer highly oxygenated growth conditions.