Which option lists the three primary states of matter?

• A. Gas, Solid, Liquid
• B. Plasma, Gas, Solid
• C. Solid, Liquid, Plasma
• D. Liquid, Gas, Plasma

Answer: (A)

Matter exists in distinct states, with solid, liquid, and gas being the three classic forms. In a solid, particles are tightly packed and vibrate in place, giving definite shape and volume. In a liquid, particles can flow past one another, so the substance takes the shape of its container while keeping a definite volume. In a gas, particles are far apart and move freely, filling space and being highly compressible. Plasma is also a recognized state at very high energy, where atoms are ionized; it’s typically treated as a separate state rather than one of the three everyday ones. The option that lists gas, solid, and liquid includes these three foundational states, making it the best choice.