Question

ninety - nine percent of all the matter that can be observed in the universe exists as
gases.
plasmas.
liquids.
solids.

Explanation:

In the universe, plasmas are extremely common. Stars (like the Sun) are made of plasma, and much of the interstellar and intergalactic matter is in plasma form. About 99% of observable matter in the universe exists as plasma. Gases, liquids, and solids are much less prevalent on this cosmic scale.

Answer:

B. plasmas.