What is ring ?

Why rings are used ?

Rings are used to indicate that the person is engaged.. or the person is married...

lol

A ring is round band made of gold and usually of metal is worn as a ornamental jewelry. Rings are worn on fingers , toes , and in ears ( earrings ) . Rings have functioned of authority , fidelity , social status or even a symbol of love .

Explanation:

answer: b (host)

viruses use the cells of living organisms to reproduce. the cell which is used by virus is called as "host cell". it is a living cell in which virus multiplies, example bacteria, plant or an animal cell.

in this, the virus is a parasite, which uses host cell for its benefit (reproduction) by using the cell machinary of host cell.