Which Description Best Fits a Chemoautotroph Bacteria

Which description best fits a chemoautotroph bacteria?

A) They reduce carbon dioxide to an organic compound by using energetic electrons derived from chemicals.
B) They reduce carbon dioxide to an inorganic compound by using energetic electrons derived from chemicals.
C) They run photosynthesis that uses solar energy to produce their own food.
D) They transfer electrons to sulfate,producing hydrogen sulfate.
E) All of the answer choices are descriptions of a chemoautotroph bacteria.