The ground state energy of a hydrogen atom is $-13.6 \text{ eV}$. The potential and kinetic energies of the electron in this state are . . . . . . .
- A$-13.6 \text{ eV}, -27.2 \text{ eV}$
- B$-27.2 \text{ eV}, -13.6 \text{ eV}$
- C$-27.2 \text{ eV}, +13.6 \text{ eV}$
- D$-13.6 \text{ eV}, +27.2 \text{ eV}$
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