If the Density of the Nucleus of Gold Is Approximately

If the density of the nucleus of gold is approximately 1´10¹⁵ g cm^-3 and solid gold has a density of 19.3 g cm^-3 estimate the percentage of the volume of solid gold that is "occupied" by the nucleus?

A) 2´10^-12 %
B) 2´10^-8 %
C) 2´10^-4 %
D) 2´10^-2 %
E) 2%