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) capnophiles that prefer highly oxygenated growth conditions.
D) strict aerobes that grow best in reducing media.
E) facultative anaerobes that require reducing media for growth.