which is the best description of a molecule?\na molecule of an element is composed of at least two types of…

which is the best description of a molecule?\na molecule of an element is composed of at least two types of atoms.\na molecule of a compound is composed of only one atom.\na molecule of a compound is composed of at least two atoms.\na molecule of an element is composed of exactly two types of atoms.
Answer
Brief Explanations:
A molecule of a compound is made up of at least two atoms. A molecule of an element consists of one - type of atoms. A molecule of a compound cannot be made of only one atom.
Answer:
C. A molecule of a compound is composed of at least two atoms.