GKFix MCQ Question

What is the charge of an electron used in physics calculations?

• A. 1.6 × 10⁻¹⁹ C
• B. 1.0 × 10⁻¹⁹ C
• C. 3.2 × 10⁻¹⁹ C
• D. 9.1 × 10⁻³¹ C