Wood is a naturally occuring . . . . . . . . material.

Answer: Option B

Definition: A composite material is made up of two or more distinct constituents that remain separate and distinct on a macroscopic level, working together to provide combined properties.

Composition of wood: Wood is a naturally occurring composite consisting mainly of cellulose fibers (which provide strength and flexibility) embedded in a lignin matrix (which acts as a binder and provides rigidity).

Reason: The cellulose fibers act as the reinforcement phase, while lignin serves as the matrix phase, giving wood its unique combination of strength, toughness, and workability.

Conclusion: Since wood is made of distinct natural components functioning together like a composite material, it is classified as a naturally occurring composite.