Members of the family enterobacteriaceae a. include e. coli, enterobacter, salmonella, and shigella. b. include many medically relevant bacteria. c. primarily reside in the intestinal tract of humans and animals. d. are facultative anaerobes. e. all of the choices are correct.

The correct answer is option E.

Explanation:

Enterobacteriaceae refers to a huge family of gram-negative bacteria. The family comprises various harmless symbionts, and many of the known pathogens like E.coli, Salmonella, Shigella, and others.  

The members of the Enterobacteriaceae are also considered as enteric bacteria or enterobacteria as many members of the family thrives in the intestines of humans and animals.  

The members of Enterobacteriaceae are facultative anaerobes, they ferment sugars to generate lactic acid and different other end products. The family also comprises many medically relevant bacteria.  

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