Rosa drew a flow chart of the carbon cycle. Flow chart of the carbon cycle with 4 boxes connected by arrows. Box 1: carbon dioxide in the atmosphere. Box 2: X. Box 3: consumers eat producers. Box 4: Y. The arrow that follows box 4 connects to box 1.
Which labels best complete the flow chart?

A) X: Producers undergo photosynthesis.
Y: Decomposers return carbon to the soil and release waste.
B) X: Decomposers return carbon to the soil and release waste.
Y: Producers undergo photosynthesis.
C) X: Decomposers take in carbon dioxide.
Y: Producers absorb carbon through their roots.
D) X: Producers absorb carbon through their roots.
Y: Decomposers take in carbon dioxide.