1 amu

It has the same mass as a neutral unbound carbon-12 atom in its nuclear and electronic ground state, which is one-twelfth of its total mass.

The mass of one mole of carbon atoms is equal to 12 gms,
$1\mathrm{amu}=\frac{12}{12\times 6.023\times {10}^{23}}=1.66\times {10}^{-27} \mathrm{kg}$

Energy-equivalent formula:$\mathrm{E}={\mathrm{mc}}^2=1.66\times {10}^{-27} \mathrm{kg}\times {\left(3\times {10}^8\right)}^2=930\mathrm{MeV}$

=930 MeV

Correct answer is B) 1.67×10⁻²⁷Kg, 930MeV