How Many Protons, Neutrons, and Electrons Are in the Ion

How many protons, neutrons, and electrons are in the ion, ¹²⁹Te^2-?

A) 52 protons, 77 neutrons, and 50 electrons
B) 53 protons, 76 neutrons, and 55 electrons
C) 52 protons, 77 neutrons, and 54 electrons
D) 50 protons, 79 neutrons, and 52 electrons
E) 51 protons, 78 neutrons, and 53 electrons