The diagram illustrates the energy contained in a food chain: $40\,000\ \text{kJ}$ photosynthesising phytoplankton $\rightarrow$ $4000\ \text{kJ}$ krill $\rightarrow$ $400\ \text{kJ}$ herring $\rightarrow$ $40\ \text{kJ}$ bass. What percentage of the energy in the producer is passed on to the secondary consumer?
- A0.01%
- B0.1%
- C1%
- D10%