An intrinsic semiconductor (intrinsic electron density = 10¹⁶ m¯³) is deped with donors to a level of 10²² m¯³. What is the hole density assuming all donors to be ionized?

• A. 10⁷ m¯³
• B. 10⁸ m¯³
• C. 10¹ᴼ m¯³
• D. 10⁶ m¯³