Which of the Following Statements About Bacteria Is CORRECT

Which of the following statements about bacteria is CORRECT?

A) The majority of microorganisms in the gut of humans are eukaryotes.
B) Bacteria make up about a third of human faecal material.
C) Most people have a low population of skin bacteria.
D) Current identification of pathogenic bacteria is by PCR (polymerase chain reaction.) .
E) The majority of bacteria are pathogenic.