Answer:
The correct answer is option E.
Step-by-step explanation:
Hydrogen sulfide refers to a chemical compound with a formula H2S. It is a colorless, corrosive, poisonous, and flammable gas. Hydrogen sulfide exhibits a rotten egg smell. It is produced when the compounds of sulfur are utilized as terminal electron acceptors. It is generated by Desulfovibrio and may react with iron to generate a black precipitate.