Which of these statements is true ? A. Gases are compressible and have a variable shape. B. Gases are incompressible and have a variable shape. C. Gases are compressible and have a fixed shape. D. Gases are incompressible and have a fixed shape. E. Gases are incompressible and can have a fixed or a variable shape.

Option A. Gases are compressible and have a variable shape.

Explanation:

From the knowledge of kinetic theory of matter, we understood that the force of attraction between gases molecules are negligible and this makes the gas molecules to be far apart. With this character, they can easily be compressed. Since the molecules of gas are far apart, they have no fixed shape, but tends to assume the shape of the container they are placed.