Classify each substance as an element, a compound, a homogeneous mixture or a heterogeneous mixture.

• A. compound, compound, heterogeneous mixture, homogeneous mixture
• B. element, homogeneous mixture, heterogeneous mixture, heterogeneous mixture
• C. element, compound, heterogeneous mixture, homogeneous mixture
• D. element, homogeneous mixture, heterogeneous mixture, homogeneous mixture

Answer: (C)