Which of the following statements about Thiomargarita namibiensis are TRUE?
a.It stores nitrate, its terminal electron acceptor.
b.It stores sulfur, its energy source.
c.It produces a sheath that allows it to move between sediment and the water above.
d.Its name means "sulfur pearl of Namibia."
e.It is a motile bacterium, possessing a tuft of terminal flagella. It