How Many Electrons, Protons, and Neutrons Are in a Neutral ${ }_{64}^{160} \mathrm{Gd}$

Multiple Choice

How many electrons, protons, and neutrons are in a neutral atom of the following isotope of gadolinium
${ }_{64}^{160} \mathrm{Gd}$

A) 64 electrons, 64 protons, and 160 neutrons
B) 64 electrons, 64 protons, and 96 neutrons
C) 96 electrons, 96 protons, and 64 neutrons
D) 64 electrons, 96 protons, and 96 neutrons
E) None of the above are correct