The radius of the first permitted Bohr orbit for the electron in a hydrogen atom equals $0.53\text{A˚}$ and its ground state energy equals $-13.6\text{eV}$. If the electron in the hydrogen atom is replaced by a muon (${\mu }^{-}$) [charge same as electron and mass $207m_e$ ], the first Bohr radius and ground state energy will be ($m_e$ represents the mass of an electron):

1. A
   $0.53\times 10^{-13}\text{m},-3.6\text{eV}$
2. B
   $25.6\times 10^{-13}\text{m},-2.8\text{eV}$
3. C
   $2.56\times 10^{-13}\text{m},-2.8\text{keV}$
4. D
   $2.56\times 10^{-13}\text{m},-13.6\text{eV}$