If the oxygen is labeled in CO2 and provide this CO2 to a plant, where it is expected to find this labeled oxygen after the plant had undergone photosynthesis?

In the oxygen given off by the plant

If the oxygen is labeled in CO2 and provide this CO2 to a plant, where

1.	If the oxygen is labeled in CO2 and provide this CO2 to a plant, where it is expected to find this labeled oxygen after the plant had undergone photosynthesis?
A.	In the NADPH
B.	In the water used
C.	In the oxygen given off by the plant
D.	In the carbohydrate produced
Answer» C. In the oxygen given off by the plant