For a neutral atom the # - #
a. proteins, neutrons
b. neutrons, electrons
c. protons, electrons
d. none of the above

c. Protons, electrons

Explanation:

 The number of these electrons in a neutral atom is equivalent to the number of protons.  

Since protons have positive charge, they balanace the negative charge of electrons. Electrons have same level of charge per particle as a proton.

Neutrons posses no charge, so in a "neutral atom" the number of proton is equal to that of electrons, othermeans it will not be neutral.

When a electron is removed by natural or artificaial means , an ion results which is an electrically charged particle. It also happens some atoms take additonal electrons once they were previously neutral. They can also lose electrons and become positively charged,