GKFix MCQ Question

In Example 14.2, what is the doping concentration of arsenic?

• A. 1.5 × 10¹⁶ m⁻³
• B. 5 × 10²² atoms/m³
• C. 5 × 10²⁸ m⁻³
• D. 4.5 × 10⁹ m⁻³