An electrical heater passes thermal energy to the surroundings. The graph indicates how the quantity of thermal energy transferred changes with time. The heater keeps transferring energy at the same rate. How much thermal energy is transferred by the heater in $5.0$ minutes?
- A$200\,\text{J}$
- B$400\,\text{J}$
- C$2000\,\text{J}$
- D$12\,000\,\text{J}$