Density is independent of mass number of nuclei

Two nuclei have their mass numbers in the ratio of 1:3. The ratio of their nuclear
densities would be

(1) 1 : 1
(2) 1 : 3
(3) 3 : 1
(4) (3)1/3 : 1

Sol. Answer (1)

Density is independent of mass number of nuclei.