Which subatomic particles are used to calculate the atomic number? Which subatomic particles are used to calculate the mass number?

a
Atomic Number - Electrons, Mass Number, Electrons and Neutrons
b
Atomic Number - Neutrons, Mass Number - Neutrons
c
Atomic Number - Protons, Mass Number - Protons and Neutrons
d
Atomic Number - Protons, Mass Number - Electrons

c

c

Atomic Number - Protons, Mass Number - Protons and Neutrons