Which is a similarity between elements and compounds?%0D%0A%0D%0AAnswer options with 4 options%0D%0AA.%09%0D%0ABoth contain atoms.%0D%0A%0D%0AB.%09%0D%0ABoth are mixtures.%0D%0A%0D%0AC.%09%0D%0ABoth are chemically combined.%0D%0A%0D%0AD.%09%0D%0ABoth contain two or more substances.

A. Both contain atoms.