Which of the following is true about the neutrons of an atom?
A. The neutrons of an atom are the only subatomic particles that are involved in the interaction between two atoms.
B. The neutrons do not affect the mass or stability of an atom's nucleus, but they are involved in most interactions between two atoms.
C. The neutrons do not affect how the atom interacts with other atoms, but they do have an effect on the mass and stability of the nucleus.