Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: The nuclear density of nuclides \( {}^{10}_{5}\mathrm{B} \), \( {}^{6}_{3}\mathrm{Li} \), \( {}^{56}_{26}\mathrm{Fe} \), \( {}^{20}_{10}\mathrm{Ne} \) and \( {}^{209}_{83}\mathrm{Bi} \) can be arranged as \( \rho^{N}_{\mathrm{Bi}} > \rho^{N}_{\mathrm{Fe}} > \rho^{N}_{\mathrm{Ne}} > \rho^{N}_{\mathrm{B}} > \rho^{N}_{\mathrm{Li}} \).
Reason R: The radius \( R \) of nucleus is related to its mass number \( A \) as \( R = R_{0} A^{1/3} \), where \( R_0 \) is a constant.
In the light of the above statements, choose the correct answer from the options given below
