What does a pyramid of net production look like in a real ecosystem, and what are the trophic efficiencies? The pyramid below represents the data collected from H. T. Odum's work on the Silver Springs ecosystem in north-central Florida. (Note that Odum used the units kilocalories [kcal] instead of joules [J].) Drag the labels to the pyramid to indicate the trophic efficiency from each trophic level to the next. A. 12%

B. 5%

C. 17%

D. 0.5%