Answer:
The correct answer is option B. The molecule contains different kinds of atoms.
Explanation:
John Dalton stated that all molecules are composed of very small units which he termed as the atom. The quantum model of the atom also validates that molecules of matter are composed of the smallest unit which is an atom.
Methane molecules consist of an atom of carbon and hydrogen. So both the model suggests that this molecule contains different kinds of atoms.
Thus, the correct answer is option B.