Which of the following states of matter has no definite shape or volume?

Gas is the state of matter that possesses neither a definite shape nor a definite volume. Gases expand to fill the shape and volume of their container, unlike solids and liquids. In solids, the particles are closely packed in a fixed arrangement, which gives them a definite shape and volume. Liquids have a definite volume but take the shape of their container, as their particles are still close together but can move freely enough to flow. Plasma, while also not having a definite shape or volume, is a state of matter consisting of ionized gases and is generally encountered at extremely high temperatures. For the purpose of this question, gas is the most fundamental state described, which specifically lacks both a definite shape and volume.