Evan is learning about energy transfer within an ecosystem. He is given the provided diagram. The diagram shows how energy from the sun moves through a simple food chain, including the energy transferred between organisms and the energy lost to heat. Evan concludes that which of the following, regarding the diagram, supports the law of conservation of energy?

A. A The total amount of energy decreases within the system.
B. B The total amount of matter remains the same within the system.
C. C The total amount of energy remains the same within the system.
D. D The total amount of energy increases within the system.