Atoms consists of protons, neutrons and electrons. If the mass of neutrons and electrons were made half and two times respectively to their actual masses, then the atomic mass of ${_6}C^{12}$

Question

$\begin{array}{1 1}(a)\;Will\; remain\; approximately\;the\; same\\(b)\;Will\; become \;approximately\; two\; times\\(c)\;Will\; remain\; approximately\; half\\(d)\;Will\; be\; reduced\; by\; 25\% \end{array}$