Each year, one square metre of grassland gets about $1\,047\,000\ \text{kJ}$ of solar light energy. The table indicates how this energy is transferred. How much energy is taken in by the grass for photosynthesis?
- A$2000\ \text{kJ}$
- B$19\,500\ \text{kJ}$
- C$21\,500\ \text{kJ}$
- D$23\,500\ \text{kJ}$