Answer:
Option E, involved in bioleaching AND produced by unicellular sulfur-oxidizers.
Step-by-step explanation:
Sulfur-oxidizing bacteria (both unicellular & colorless) are responsible for oxidizing the inorganic compounds thereby producing sulfuric acid. when bacteria and fungi are used for extracting pure inorganic substance from its raw ore, then this process is called bio leaching. The net product of any such process in most of the cases is the pure metal in form of sulfate and sulfuric acid.
Option E is correct.