In an n type semiconductor the fermi level is 0.35 eV below the conduction band, the concentration of donor atoms is increased to three times. The new position of Fermi level will be

• A. 0.35 eV below conduction band
• B. about 0.32 eV below conduction band
• C. about 0.32 eV above conduction band
• D. about 0.1 eV below conduction band