Step 1: Concept
- KCL (Junction Rule): $\sum I = 0$. Total charge entering a junction must equal charge leaving.
- KVL (Loop Rule): $\sum V = 0$. Work done in moving a charge around a closed loop is zero.
Step 2: Analysis
- Voltage law = Conservation of Energy.
- Current law = Conservation of Charge.
Step 3: Conclusion
Hence, the pair is Energy and Charge.
Final Answer: (B)