An unknown nucleus has a nuclear density of 2.29 × 10¹⁷ kg/m³$2.29 \times 10^{17} \, \mathrm{kg/m}^{3}$ and mass of 19.926 × 10⁻²⁷ kg$19.926 \times 10^{-27} \, \mathrm{kg}$ . Its mass number A is approximately: (Take R₀ = 1.2 × 10⁻¹⁵ m, 4π = 12.56$R_{0} = 1.2 \times 10^{-15} \, \mathrm{m}, 4\pi = 12.56$ )

Four statements are given (A is mass number): A. The volume of a nucleus is proportional to A1/3$A^{1/3}$. B. The volume of a nucleus is proportional to A. C. The difference in mass of an atom and its nucleus is called the mass defect. D. The difference in mass of a nucleus and its constituents is called the mass defect. Choose the correct answer from the options given below: