Two models of molecules are shown. What is true about the molecules shown in the models? The one on the left has 1 carbon atom and 1 oxygen atom and the one on the right has 2 oxygen atoms and 1 carbon atom? A. They are molecules of the same substance.

B. They are molecules of two substances with the same properties.

C. They are molecules that join together.

D. They are molecules containing the same kind of atoms.