Which statement of Dalton's atomic theory corresponds to the law of multiple proportions?

• A. All of matter is made of atoms, which are the smallest particle of matter.
• B. Atoms are indivisible, and therefore cannot be created or destroyed.
• C. All atoms of a given element are identical in mass, size, and properties.
• D. Compounds are made of 2 or more different types of atoms in fixed, simple, whole number ratios.
• E. A chemical reaction is a rearrangement of atoms.

Answer: (D)