How do the particlesthat make up an atom interact

The three main subatomic particles that form an atom are protons, neutrons, and electrons. The center of the atom is called the nucleus. First, let's learn a bit about protons and neutrons, and then we will talk about electrons a little later. Protons and neutrons make up the nucleus of an atom

the answer is b & c i believe : )

i believe the answer is three water molecules