I believe the answer is b hope this helps
You're answer my dear person on this website is theory
Phagocytes i believe because they destroy unwanted bacteria, they are a group of white blood cells
Electrons are the smallest of the three particles that make up atoms. Electrons are found in shells or orbitals that surround the nucleus of an atom. Protons and neutrons are found in the nucleus. They group together in the center of the atom.