Compounds are the smallest unit of an element that occurs most commonly in nature.
Select the rewording of the statement that is true.

A.) Molecules are the smallest unit of an element or compound that commonly occur in nature.
B.) Atoms are the smallest unit of an element that commonly occur in nature.
C.) Molecules are the smallest unit of a compound that occurs on the periodic table.
D.) Compounds are the smallest unit of an element that occurs on the periodic table.