Polymers are the primary building blocks for which of the following materials?

Polymers are long chains of repeating molecular units, which give them unique properties that are distinct from other types of materials. They are primarily found in plastics, which are synthetic materials made from polymers. Plastics exhibit characteristics such as flexibility, durability, and resistance to many chemicals, making them highly versatile for a wide range of applications, from packaging to automotive components.

While wood, metals, and glass are important materials, they consist of different structural components. Wood is primarily composed of cellulose, lignin, and hemicellulose—not polymers in the way that plastics are. Metals consist of crystalline structures of atoms arranged in a lattice, and glass is primarily made from silica, which forms a non-crystalline (amorphous) solid. Therefore, among the available choices, plastics are directly associated with polymers, affirming that they are the primary building blocks for this material.