Mariana eats an orange. Which statement describes the ultimate source of the energy that her body receives when she digests the orange?
A. Organic matter, rich soil in which the orange tree grows, and adequate water all work together to generate the energy that can be
obtained from the orange.
B. The light energy that originates from the sun provides the energy to grow oranges, which contain macromolecules.
C. The orange tree obtains energy from the nitrogen and other compounds in fertilizer.
D. The orange contains the energy-rich nutrients that it draws from the soil.