Choose the correct sequence for the carbon cycle.

• A
  $CO_2$ in atmosphere $\to$ decomposers $\to$ organic carbon in animals $\to$ organic carbon in plants
• B
  Inorganic carbonates in water $\to$ organic carbon in plants $\to$ organic carbon in animals $\to$ scavengers
• C
  $CO_2$ in atmosphere $\to$ organic carbon in plants $\to$ organic carbon in animals $\to$ inorganic carbon in soil
• D
  Organic carbon in animals $\to$ decomposers $\to$ $CO_2$ in atmosphere $\to$ organic carbon in plants