A battery charger can drive current of 5 A into a 1 Ω resistance connected at its output terminals. If it is able to charge an ideal 2 V battery at 7 A rate, then Thevenin’s equivalent will be

• A. 7.5 V in series with 0.5 Ω
• B. 12.5 V in series with 1.5 Ω
• C. 7.5 V in parallel with 0.5 Ω
• D. 12.5 V in parallel with 1.5 Ω