GKFix MCQ Question

What is the potential energy of a system of two charges q₁ and q₂ separated by r₁₂?

• A. (1/(4πε₀)) × (q₁/r₁₂)
• B. (1/(4π)) × (q₁q₂/r₁₂)
• C. (q₁q₂r₁₂)/(4πε₀)
• D. (1/(4πε₀)) × (q₁q₂/r₁₂)