Answer the following question given this paragraph: 

The majority of solids are crystalline in nature. A crystal is a substance in which the particles are arranged in an orderly, repeating, three-dimensional pattern. Particles of a solid crystal may be ions, atoms, or molecules, depending on the type of substance. The three-dimensional arrangement of a solid crystal is referred to as the crystal lattice . Different arrangements of the particles within a crystal cause them to adopt several different shapes.


Q: The majority of solids are what in nature?

 Choices:

- gases

- complex

- liquids

- crystalline

A:
crystalline
