Two $100\,\text{W}$ lamps are arranged in parallel across the mains supply, as shown. What amount of electrical energy is delivered by the mains when the switch remains closed for $36$ minutes?
- A$0.030\,\text{kWh}$
- B$0.060\,\text{kWh}$
- C$0.12\,\text{kWh}$
- D$7.2\,\text{kWh}$