Correct option is D
The valence band and conduction band for a semiconductor are closer to the Fermi level.
Explanation
The valence band and conduction band are the bands closest to the Fermi level in a solid.
The Fermi level is the highest energy level an electron can occupy at absolute zero temperature.
The valence band is below the Fermi level, and the conduction band is above it.
The valence band and conduction band determine the electrical conductivity of a solid.
