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Microorganism are our friend and foe. Some of them are useful for us whereas some are harmful. From the given list sort out useful and harmful actions of bacteria.  Creating food, spoiling food, decomposition, role in carbon and nitrogen cycle, sickness

A) Useful: Creating food, decomposition. Harmful: Spoiling food, role in carbon and nitrogen cycle, sickness.

B) Useful: Creating food, decomposition, role in carbon and nitrogen cycle. Harmful: Spoiling food, sickness.

C) Useful: Creating food, role in carbon and nitrogen cycle. Harmful: Spoiling food, sickness, decomposition.

D) Useful: Creating food, role in carbon and nitrogen cycle, spoiling food. Harmful: Sickness, decomposition.

E) None of these